Spec-Zone .ru
спецификации, руководства, описания, API
Spec-Zone .ru
спецификации, руководства, описания, API
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ZSHOPTIONS(1)                                                                                  ZSHOPTIONS(1)



NAME
       zshoptions - zsh options

SPECIFYING OPTIONS
       Options  are  primarily  referred  to  by name.  These names are case insensitive and underscores are
       ignored.  For example, `allexport' is equivalent to `A__lleXP_ort'.

       The sense of an option name may be inverted by preceding it with `no', so `setopt No_Beep' is equiva-lent equivalent
       lent  to  `unsetopt  beep'.  This inversion can only be done once, so `nonobeep' is not a synonym for
       `beep'.  Similarly, `tify' is not a synonym for `nonotify' (the inversion of `notify').

       Some options also have one or more single letter names.  There are two sets of single letter options:
       one  used  by  default, and another used to emulate sh/ksh (used when the SH_OPTION_LETTERS option is
       set).  The single letter options can be used on the shell command line, or with the set,  setopt  and
       unsetopt builtins, as normal Unix options preceded by `-'.

       The sense of the single letter options may be inverted by using `+' instead of `-'.  Some of the sin-gle single
       gle letter option names refer to an option being off, in which case the inversion of that name refers
       to the option being on.  For example, `+n' is the short name of `exec', and `-n' is the short name of
       its inversion, `noexec'.

       In strings of single letter options supplied to the shell at startup,  trailing  whitespace  will  be
       ignored;  for  example  the string `-f    ' will be treated just as `-f', but the string `-f i' is an
       error.  This is because many systems which implement the `#!' mechanism for calling  scripts  do  not
       strip trailing whitespace.


DESCRIPTION OF OPTIONS
       In  the following list, options set by default in all emulations are marked <D>; those set by default
       only in csh, ksh, sh, or zsh emulations are marked <C>, <K>, <S>, <Z> as appropriate.   When  listing
       options  (by  `setopt',  `unsetopt',  `set -o' or `set +o'), those turned on by default appear in the
       list prefixed with `no'.  Hence (unless KSH_OPTION_PRINT is set), `setopt' shows  all  options  whose
       settings are changed from the default.


   Changing Directories
       AUTO_CD (-J)
              If a command is issued that can't be executed as a normal command, and the command is the name
              of a directory, perform the cd command to that directory.

       AUTO_PUSHD (-N)
              Make cd push the old directory onto the directory stack.

       CDABLE_VARS (-T)
              If the argument to a cd command (or an implied cd with the AUTO_CD option set) is not a direc-tory, directory,
              tory,  and does not begin with a slash, try to expand the expression as if it were preceded by
              a `~' (see the section `Filename Expansion').

       CHASE_DOTS
              When changing to a directory containing a path segment `..' which would otherwise  be  treated
              as  canceling the previous segment in the path (in other words, `foo/..' would be removed from
              the path, or if `..' is the first part of the path, the  last  part  of  the  current  working
              directory  would be removed), instead resolve the path to the physical directory.  This option
              is overridden by CHASE_LINKS.

              For example, suppose /foo/bar is a link to the directory /alt/rod.  Without this  option  set,
              `cd  /foo/bar/..'  changes  to /foo; with it set, it changes to /alt.  The same applies if the
              current directory is /foo/bar and `cd ..' is used.  Note that all other symbolic links in  the
              path will also be resolved.

       CHASE_LINKS (-w)
              Resolve symbolic links to their true values when changing directory.  This also has the effect
              of CHASE_DOTS, i.e. a `..' path segment will be treated as referring to the  physical  parent,
              even if the preceding path segment is a symbolic link.

       POSIX_CD
              Modifies  the  behaviour of cd, chdir and pushd commands to make them more compatible with the
              POSIX standard. The behaviour with the option unset is described in the documentation for  the
              cd  builtin  in zshbuiltins(1).  If the option is set, the shell does not test for directories
              beneath the local directory (`.') until after all directories in cdpath have been tested.

              Also, if the option is set, the conditions under which the  shell  prints  the  new  directory
              after changing to it are modified.  It is no longer restricted to interactive shells (although
              printing of the directory stack with pushd is still limited to interactive  shells);  and  any
              use  of a component of CDPATH, including a `.' but excluding an empty component that is other-wise otherwise
              wise treated as `.', causes the directory to be printed.

       PUSHD_IGNORE_DUPS
              Don't push multiple copies of the same directory onto the directory stack.

       PUSHD_MINUS
              Exchanges the meanings of `+' and `-' when used with a number to specify a  directory  in  the
              stack.

       PUSHD_SILENT (-E)
              Do not print the directory stack after pushd or popd.

       PUSHD_TO_HOME (-D)
              Have pushd with no arguments act like `pushd $HOME'.


   Completion
       ALWAYS_LAST_PROMPT <D>
              If  unset,  key  functions  that  list completions try to return to the last prompt if given a
              numeric argument. If set these functions try to return to the last prompt if given no  numeric
              argument.

       ALWAYS_TO_END
              If a completion is performed with the cursor within a word, and a full completion is inserted,
              the cursor is moved to the end of the word.  That is, the cursor is moved to the  end  of  the
              word if either a single match is inserted or menu completion is performed.

       AUTO_LIST (-9) <D>
              Automatically list choices on an ambiguous completion.

       AUTO_MENU <D>
              Automatically  use  menu  completion  after the second consecutive request for completion, for
              example by pressing the tab key repeatedly. This option is overridden by MENU_COMPLETE.

       AUTO_NAME_DIRS
              Any parameter that is set to the absolute name of a directory immediately becomes a  name  for
              that directory, that will be used by the `%~' and related prompt sequences, and will be avail-able available
              able when completion is performed on a word starting with `~'.  (Otherwise, the parameter must
              be used in the form `~param' first.)

       AUTO_PARAM_KEYS <D>
              If  a  parameter name was completed and a following character (normally a space) automatically
              inserted, and the next character typed is one of those that have to come  directly  after  the
              name  (like `}', `:', etc.), the automatically added character is deleted, so that the charac-ter character
              ter typed comes immediately after the parameter name.  Completion  in  a  brace  expansion  is
              affected  similarly: the added character is a `,', which will be removed if `}' is typed next.

       AUTO_PARAM_SLASH <D>
              If a parameter is completed whose content is the name of a  directory,  then  add  a  trailing
              slash instead of a space.

       AUTO_REMOVE_SLASH <D>
              When the last character resulting from a completion is a slash and the next character typed is
              a word delimiter, a slash, or a character that ends a command  (such  as  a  semicolon  or  an
              ampersand), remove the slash.

       BASH_AUTO_LIST
              On  an ambiguous completion, automatically list choices when the completion function is called
              twice in succession.  This takes precedence over AUTO_LIST.  The setting of LIST_AMBIGUOUS  is
              respected.   If  AUTO_MENU  is  set,  the menu behaviour will then start with the third press.
              Note that this will not work with MENU_COMPLETE, since repeated completion  calls  immediately
              cycle through the list in that case.

       COMPLETE_ALIASES
              Prevents  aliases  on  the command line from being internally substituted before completion is
              attempted.  The effect is to make the alias a distinct command for completion purposes.

       COMPLETE_IN_WORD
              If unset, the cursor is set to the end of the word if  completion  is  started.  Otherwise  it
              stays there and completion is done from both ends.

       GLOB_COMPLETE
              When  the  current  word  has  a  glob pattern, do not insert all the words resulting from the
              expansion but generate matches as for completion and cycle through  them  like  MENU_COMPLETE.
              The  matches  are  generated  as if a `*' was added to the end of the word, or inserted at the
              cursor when COMPLETE_IN_WORD is set.  This actually uses pattern matching, not globbing, so it
              works not only for files but for any completion, such as options, user names, etc.

              Note that when the pattern matcher is used, matching control (for example, case-insensitive or
              anchored matching) cannot be used.  This limitation only applies when the  current  word  con-tains contains
              tains a pattern; simply turning on the GLOB_COMPLETE option does not have this effect.

       HASH_LIST_ALL <D>
              Whenever  a  command completion or spelling correction is attempted, make sure the entire com-mand command
              mand path is hashed first.  This makes the first completion slower but avoids false reports of
              spelling errors.

       LIST_AMBIGUOUS <D>
              This  option  works  when AUTO_LIST or BASH_AUTO_LIST is also set.  If there is an unambiguous
              prefix to insert on the command line, that is done without a completion list being  displayed;
              in  other  words,  auto-listing behaviour only takes place when nothing would be inserted.  In
              the case of BASH_AUTO_LIST, this means that the list will be delayed to the third call of  the
              function.

       LIST_BEEP <D>
              Beep  on  an  ambiguous  completion.   More  accurately, this forces the completion widgets to
              return status 1 on an ambiguous completion, which causes the shell to beep if the option  BEEP
              is also set; this may be modified if completion is called from a user-defined widget.

       LIST_PACKED
              Try to make the completion list smaller (occupying less lines) by printing the matches in col-umns columns
              umns with different widths.

       LIST_ROWS_FIRST
              Lay out the matches in completion lists sorted horizontally, that is, the second match  is  to
              the right of the first one, not under it as usual.

       LIST_TYPES (-X) <D>
              When  listing  files that are possible completions, show the type of each file with a trailing
              identifying mark.

       MENU_COMPLETE (-Y)
              On an ambiguous completion, instead of listing possibilities  or  beeping,  insert  the  first
              match immediately.  Then when completion is requested again, remove the first match and insert
              the second match, etc.  When there are no more matches,  go  back  to  the  first  one  again.
              reverse-menu-complete may be used to loop through the list in the other direction. This option
              overrides AUTO_MENU.

       REC_EXACT (-S)
              In completion, recognize exact matches even if they are ambiguous.


   Expansion and Globbing
       BAD_PATTERN (+2) <C> <Z>
              If a pattern for filename generation is badly formed, print an error message.  (If this option
              is unset, the pattern will be left unchanged.)

       BARE_GLOB_QUAL <Z>
              In  a glob pattern, treat a trailing set of parentheses as a qualifier list, if it contains no
              `|', `(' or (if special) `~' characters.  See the section `Filename Generation'.

       BRACE_CCL
              Expand expressions in braces which would not otherwise undergo brace expansion to a  lexically
              ordered list of all the characters.  See the section `Brace Expansion'.

       CASE_GLOB <D>
              Make  globbing  (filename generation) sensitive to case.  Note that other uses of patterns are
              always sensitive to case.  If the option is unset, the presence of any character which is spe-cial special
              cial  to  filename  generation  will cause case-insensitive matching.  For example, cvs(/) can
              match the directory CVS owing to  the  presence  of  the  globbing  flag  (unless  the  option
              BARE_GLOB_QUAL is unset).

       CASE_MATCH <D>
              Make  regular  expressions using the zsh/regex module (including matches with =~) sensitive to
              case.

       CSH_NULL_GLOB <C>
              If a pattern for filename generation has no matches, delete  the  pattern  from  the  argument
              list;  do not report an error unless all the patterns in a command have no matches.  Overrides
              NOMATCH.

       EQUALS <Z>
              Perform = filename expansion.  (See the section `Filename Expansion'.)

       EXTENDED_GLOB
              Treat the `#', `~' and `^' characters as part of patterns for filename generation,  etc.   (An
              initial unquoted `~' always produces named directory expansion.)

       GLOB (+F, ksh: +f) <D>
              Perform filename generation (globbing).  (See the section `Filename Generation'.)

       GLOB_ASSIGN <C>
              If  this  option is set, filename generation (globbing) is performed on the right hand side of
              scalar parameter assignments of the form `name=pattern (e.g. `foo=*').  If the result has more
              than one word the parameter will become an array with those words as arguments. This option is
              provided for backwards compatibility only: globbing is always performed on the right hand side
              of  array assignments of the form `name=(value)' (e.g. `foo=(*)') and this form is recommended
              for clarity; with this option set, it is not possible to predict whether the result will be an
              array or a scalar.

       GLOB_DOTS (-4)
              Do not require a leading `.' in a filename to be matched explicitly.

       GLOB_SUBST <C> <K> <S>
              Treat  any  characters resulting from parameter expansion as being eligible for file expansion
              and filename generation, and any characters resulting from command substitution as being  eli-gible eligible
              gible  for  filename  generation.   Braces  (and commas in between) do not become eligible for
              expansion.

       HIST_SUBST_PATTERN
              Substitutions using the :s and :&  history  modifiers  are  performed  with  pattern  matching
              instead  of string matching.  This occurs wherever history modifiers are valid, including glob
              qualifiers and parameters.  See the section Modifiers in zshexpn(1).

       IGNORE_BRACES (-I) <S>
              Do not perform brace expansion.  For historical reasons this also includes the effect  of  the
              IGNORE_CLOSE_BRACES option.

       IGNORE_CLOSE_BRACES
              When neither this option nor IGNORE_BRACES is set, a sole close brace character `}' is syntac-tically syntactically
              tically significant at any point on a command line.  This has the effect that no semicolon  or
              newline is necessary before the brace terminating a function or current shell construct.  When
              either option is set, a closing brace is syntactically significant only in  command  position.
              Unlike IGNORE_BRACES, this option does not disable brace expansion.

              For example, with both options unset a function may be defined in the following fashion:

                     args() { echo $# }

              while if either option is set, this does not work and something equivalent to the following is
              required:

                     args() { echo $#; }


       KSH_GLOB <K>
              In pattern matching, the interpretation of parentheses is affected by a  preceding  `@',  `*',
              `+', `?' or `!'.  See the section `Filename Generation'.

       MAGIC_EQUAL_SUBST
              All unquoted arguments of the form `anything=expression' appearing after the command name have
              filename expansion (that is, where expression has a leading `~' or `=') performed  on  expres-sion expression
              sion  as  if it were a parameter assignment.  The argument is not otherwise treated specially;
              it is passed to the command as a single argument, and not used as an actual parameter  assign-ment. assignment.
              ment.   For  example,  in echo foo=~/bar:~/rod, both occurrences of ~ would be replaced.  Note
              that this happens anyway with typeset and similar statements.

              This option respects the setting of the KSH_TYPESET option.  In other words, if  both  options
              are in effect, arguments looking like assignments will not undergo word splitting.

       MARK_DIRS (-8, ksh: -X)
              Append a trailing `/' to all directory names resulting from filename generation (globbing).

       MULTIBYTE <C> <K> <Z>
              Respect  multibyte  characters  when  found  in strings.  When this option is set, strings are
              examined using the system library to determine how many bytes form a character,  depending  on
              the  current locale.  This affects the way characters are counted in pattern matching, parame-ter parameter
              ter values and various delimiters.

              The option is on by default if the shell was compiled with MULTIBYTE_SUPPORT except in sh emu-lation; emulation;
              lation;  otherwise it is off by default and has no effect if turned on.  The mode is off in sh
              emulation for compatibility but for interactive use may need to be turned on if  the  terminal
              interprets multibyte characters.

              If  the  option is off a single byte is always treated as a single character.  This setting is
              designed purely for examining strings known to contain raw bytes or other values that may  not
              be  characters  in the current locale.  It is not necessary to unset the option merely because
              the character set for the current locale does not contain multibyte characters.

              The option does not affect the shell's editor,  which always  uses  the  locale  to  determine
              multibyte characters.  This is because the character set displayed by the terminal emulator is
              independent of shell settings.

       NOMATCH (+3) <C> <Z>
              If a pattern for filename generation has no matches, print an error,  instead  of  leaving  it
              unchanged in the argument list.  This also applies to file expansion of an initial `~' or `='.

       NULL_GLOB (-G)
              If a pattern for filename generation has no matches, delete the pattern from the argument list
              instead of reporting an error.  Overrides NOMATCH.

       NUMERIC_GLOB_SORT
              If  numeric filenames are matched by a filename generation pattern, sort the filenames numeri-cally numerically
              cally rather than lexicographically.

       RC_EXPAND_PARAM (-P)
              Array expansions of the form `foo${xx}bar', where the parameter xx is set to (a b c), are sub-stituted substituted
              stituted  with  `fooabar  foobbar foocbar' instead of the default `fooa b cbar'.  Note that an
              empty array will therefore cause all arguments to be removed.

       REMATCH_PCRE <Z>
              If set, regular expression matching with the =~  operator  will  use  Perl-Compatible  Regular
              Expressions from the PCRE library, if available.  If not set, regular expressions will use the
              extended regexp syntax provided by the system libraries.

       SH_GLOB <K> <S>
              Disables the special meaning of `(', `|', `)' and '<' for globbing the result of parameter and
              command  substitutions, and in some other places where the shell accepts patterns.  If SH_GLOB
              is set but KSH_GLOB is not, the  shell  allows  the  interpretation  of  subshell  expressions
              enclosed  in parentheses in some cases where there is no space before the opening parenthesis,
              e.g. !(true) is interpreted as if there were a space after the  !.   This  option  is  set  by
              default if zsh is invoked as sh or ksh.

       UNSET (+u, ksh: +u) <K> <S> <Z>
              Treat unset parameters as if they were empty when substituting.  Otherwise they are treated as
              an error.

       WARN_CREATE_GLOBAL
              Print a warning message when a global parameter is created in a  function  by  an  assignment.
              This  often  indicates  that a parameter has not been declared local when it should have been.
              Parameters explicitly declared global from within a function using typeset -g do not  cause  a
              warning.   Note  that  there  is  no warning when a local parameter is assigned to in a nested
              function, which may also indicate an error.


   History
       APPEND_HISTORY <D>
              If this is set, zsh sessions will append their history list to the history file,  rather  than
              replace it. Thus, multiple parallel zsh sessions will all have the new entries from their his-tory history
              tory lists added to the history file, in the order that they exit.  The  file  will  still  be
              periodically  re-written to trim it when the number of lines grows 20% beyond the value speci-fied specified
              fied by $SAVEHIST (see also the HIST_SAVE_BY_COPY option).

       BANG_HIST (+K) <C> <Z>
              Perform textual history expansion, csh-style, treating the character `!' specially.

       EXTENDED_HISTORY <C>
              Save each command's beginning timestamp (in seconds since the epoch) and the duration (in sec-onds) seconds)
              onds) to the history file.  The format of this prefixed data is:

              `: <beginning time>:<elapsed seconds>;<command>'.

       HIST_ALLOW_CLOBBER
              Add  `|'  to  output  redirections  in the history.  This allows history references to clobber
              files even when CLOBBER is unset.

       HIST_BEEP <D>
              Beep when an attempt is made to access a history entry which isn't there.

       HIST_EXPIRE_DUPS_FIRST
              If the internal history needs to be trimmed to add the  current  command  line,  setting  this
              option  will  cause  the  oldest history event that has a duplicate to be lost before losing a
              unique event from the list.  You should be sure to set the value of HISTSIZE to a larger  num-ber number
              ber  than  SAVEHIST  in  order to give you some room for the duplicated events, otherwise this
              option will behave just like HIST_IGNORE_ALL_DUPS  once  the  history  fills  up  with  unique
              events.

       HIST_FCNTL_LOCK
              When  writing  out  the  history  file, by default zsh uses ad-hoc file locking to avoid known
              problems with locking on some operating systems.  With this option locking is done by means of
              the system's fcntl call, where this method is available.  On recent operating systems this may
              provide better performance, in particular avoiding history corruption when files are stored on
              NFS.

       HIST_FIND_NO_DUPS
              When  searching  for  history  entries in the line editor, do not display duplicates of a line
              previously found, even if the duplicates are not contiguous.

       HIST_IGNORE_ALL_DUPS
              If a new command line being added to the history list duplicates an older one, the older  com-mand command
              mand is removed from the list (even if it is not the previous event).

       HIST_IGNORE_DUPS (-h)
              Do not enter command lines into the history list if they are duplicates of the previous event.

       HIST_IGNORE_SPACE (-g)
              Remove command lines from the history list when the first character on the line is a space, or
              when one of the expanded aliases contains a leading space.  Only normal aliases (not global or
              suffix aliases) have this behaviour.  Note that the command lingers in  the  internal  history
              until  the  next  command is entered before it vanishes, allowing you to briefly reuse or edit
              the line.  If you want to make it vanish right away without entering another command,  type  a
              space and press return.

       HIST_LEX_WORDS
              By  default,  shell history that is read in from files is split into words on all white space.
              This means that arguments with quoted whitespace are not correctly handled,  with  the  conse-quence consequence
              quence  that references to words in history lines that have been read from a file may be inac-curate. inaccurate.
              curate.  When this option is set, words read in from a history file are divided up in a  simi-lar similar
              lar  fashion  to  normal  shell command line handling.  Although this produces more accurately
              delimited words, if the size of the history file is large this can be slow.  Trial  and  error
              is necessary to decide.

       HIST_NO_FUNCTIONS
              Remove  function  definitions  from  the  history list.  Note that the function lingers in the
              internal history until the next command is entered before it vanishes, allowing you to briefly
              reuse or edit the definition.

       HIST_NO_STORE
              Remove  the history (fc -l) command from the history list when invoked.  Note that the command
              lingers in the internal history until the next command is entered before it vanishes, allowing
              you to briefly reuse or edit the line.

       HIST_REDUCE_BLANKS
              Remove superfluous blanks from each command line being added to the history list.

       HIST_SAVE_BY_COPY <D>
              When  the  history  file  is re-written, we normally write out a copy of the file named $HIST-FILE.new $HISTFILE.new
              FILE.new and then rename it over the old one.  However, if this option is  unset,  we  instead
              truncate  the  old  history  file  and write out the new version in-place.  If one of the his-tory-appending history-appending
              tory-appending options is enabled, this option only has an effect when  the  enlarged  history
              file  needs  to  be re-written to trim it down to size.  Disable this only if you have special
              needs, as doing so makes it possible to lose history entries if zsh  gets  interrupted  during
              the save.

              When  writing  out  a  copy  of the history file, zsh preserves the old file's permissions and
              group information, but will refuse to write out a new file if  it  would  change  the  history
              file's owner.

       HIST_SAVE_NO_DUPS
              When writing out the history file, older commands that duplicate newer ones are omitted.

       HIST_VERIFY
              Whenever  the  user  enters  a  line  with history expansion, don't execute the line directly;
              instead, perform history expansion and reload the line into the editing buffer.

       INC_APPEND_HISTORY
              This options works like APPEND_HISTORY except that new history lines are added to  the  $HIST-FILE $HISTFILE
              FILE  incrementally  (as soon as they are entered), rather than waiting until the shell exits.
              The file will still be periodically re-written to trim it when the number of lines  grows  20%
              beyond the value specified by $SAVEHIST (see also the HIST_SAVE_BY_COPY option).

       SHARE_HISTORY <K>

              This  option  both imports new commands from the history file, and also causes your typed com-mands commands
              mands to be appended to the history file (the latter is like  specifying  INC_APPEND_HISTORY).
              The  history lines are also output with timestamps ala EXTENDED_HISTORY (which makes it easier
              to find the spot where we left off reading the file after it gets re-written).

              By default, history movement commands visit the imported lines as well as the local lines, but
              you can toggle this on and off with the set-local-history zle binding.  It is also possible to
              create a zle widget that will make some commands ignore imported commands,  and  some  include
              them.

              If  you  find that you want more control over when commands get imported, you may wish to turn
              SHARE_HISTORY off, INC_APPEND_HISTORY on, and then manually import commands whenever you  need
              them using `fc -RI'.


   Initialisation
       ALL_EXPORT (-a, ksh: -a)
              All parameters subsequently defined are automatically exported.

       GLOBAL_EXPORT (<Z>)
              If  this  option is set, passing the -x flag to the builtins declare, float, integer, readonly
              and typeset (but not local) will also set the -g flag;  hence parameters exported to the envi-ronment environment
              ronment will not be made local to the enclosing function, unless they were already or the flag
              +g is given explicitly.  If the option is unset, exported parameters will  be  made  local  in
              just the same way as any other parameter.

              This  option  is set by default for backward compatibility; it is not recommended that its be-haviour behaviour
              haviour be relied upon.  Note that the builtin export always sets both the -x  and  -g  flags,
              and hence its effect extends beyond the scope of the enclosing function; this is the most por-table portable
              table way to achieve this behaviour.

       GLOBAL_RCS (-d) <D>
              If this option  is  unset,  the  startup  files  /etc/zprofile,  /etc/zshrc,  /etc/zlogin  and
              /etc/zlogout will not be run.  It can be disabled and re-enabled at any time, including inside
              local startup files (.zshrc, etc.).

       RCS (+f) <D>
              After /etc/zshenv is  sourced  on  startup,  source  the  .zshenv,  /etc/zprofile,  .zprofile,
              /etc/zshrc,  .zshrc,  /etc/zlogin,  .zlogin,  and  .zlogout files, as described in the section
              `Files'.  If this option is unset, the /etc/zshenv file is still sourced, but any of the  oth-ers others
              ers  will  not  be; it can be set at any time to prevent the remaining startup files after the
              currently executing one from being sourced.


   Input/Output
       ALIASES <D>
              Expand aliases.

       CLOBBER (+C, ksh: +C) <D>
              Allows `>' redirection to truncate existing files, and `>>' to create files.   Otherwise  `>!'
              or `>|' must be used to truncate a file, and `>>!' or `>>|' to create a file.

       CORRECT (-0)
              Try  to correct the spelling of commands.  Note that, when the HASH_LIST_ALL option is not set
              or when some directories in the path are not readable, this may falsely report spelling errors
              the first time some commands are used.

              The  shell  variable  CORRECT_IGNORE may be set to a pattern to match words that will never be
              offered as corrections.

       CORRECT_ALL (-O)
              Try to correct the spelling of all arguments in a line.

       DVORAK Use the Dvorak keyboard instead of the standard qwerty  keyboard  as  a  basis  for  examining
              spelling mistakes for the CORRECT and CORRECT_ALL options and the spell-word editor command.

       FLOW_CONTROL <D>
              If  this  option  is unset, output flow control via start/stop characters (usually assigned to
              ^S/^Q) is disabled in the shell's editor.

       IGNORE_EOF (-7)
              Do not exit on end-of-file.  Require the use of exit or logout instead.  However, ten consecu-tive consecutive
              tive  EOFs  will  cause  the  shell to exit anyway, to avoid the shell hanging if its tty goes
              away.

              Also, if this option is set and the Zsh Line Editor is  used,  widgets  implemented  by  shell
              functions  can  be  bound to EOF (normally Control-D) without printing the normal warning mes-sage. message.
              sage.  This works only for normal widgets, not for completion widgets.

       INTERACTIVE_COMMENTS (-k) <K> <S>
              Allow comments even in interactive shells.

       HASH_CMDS <D>
              Note the location of each command the first time it is executed.   Subsequent  invocations  of
              the  same  command  will  use  the  saved location, avoiding a path search.  If this option is
              unset, no path hashing is done at all.  However, when CORRECT is set, commands whose names  do
              not appear in the functions or aliases hash tables are hashed in order to avoid reporting them
              as spelling errors.

       HASH_DIRS <D>
              Whenever a command name is hashed, hash the directory containing it, as well as  all  directo-ries directories
              ries that occur earlier in the path.  Has no effect if neither HASH_CMDS nor CORRECT is set.

       HASH_EXECUTABLES_ONLY
              When  hashing  commands because of HASH_COMMANDS, check that the file to be hashed is actually
              an executable.  This option is unset by default as if the path contains a large number of com-mands, commands,
              mands, or consists of many remote files, the additional tests can take a long time.  Trial and
              error is needed to show if this option is beneficial.

       MAIL_WARNING (-U)
              Print a warning message if a mail file has been accessed since the shell last checked.

       PATH_DIRS (-Q)
              Perform a path search even on command names with slashes in them.  Thus if `/usr/local/bin' is
              in  the  user's  path, and he or she types `X11/xinit', the command `/usr/local/bin/X11/xinit'
              will be executed (assuming it exists).  Commands explicitly beginning with `/', `./' or  `../'
              are not subject to the path search.  This also applies to the `.' builtin.

              Note  that  subdirectories of the current directory are always searched for executables speci-fied specified
              fied in this form.  This takes place before any search indicated by this option,  and  regard-less regardless
              less of whether `.' or the current directory appear in the command search path.

       PATH_SCRIPT <K> <S>
              If  this option is not set, a script passed as the first non-option argument to the shell must
              contain the name of the file to open.  If this option is set, and the script does not  specify
              a directory path, the script is looked for first in the current directory, then in the command
              path.  See the section INVOCATION in zsh(1).

       PRINT_EIGHT_BIT
              Print eight bit characters literally in completion lists, etc.  This option is  not  necessary
              if your system correctly returns the printability of eight bit characters (see ctype(3)).

       PRINT_EXIT_VALUE (-1)
              Print the exit value of programs with non-zero exit status.

       RC_QUOTES
              Allow  the  character  sequence  `'''  to signify a single quote within singly quoted strings.
              Note this does not apply in quoted strings using the format $'...', where a backslashed single
              quote can be used.

       RM_STAR_SILENT (-H) <K> <S>
              Do not query the user before executing `rm *' or `rm path/*'.

       RM_STAR_WAIT
              If querying the user before executing `rm *' or `rm path/*', first wait ten seconds and ignore
              anything typed in that time.  This avoids the problem of reflexively answering  `yes'  to  the
              query  when  one didn't really mean it.  The wait and query can always be avoided by expanding
              the `*' in ZLE (with tab).

       SHORT_LOOPS <C> <Z>
              Allow the short forms of for, repeat, select, if, and function constructs.

       SUN_KEYBOARD_HACK (-L)
              If a line ends with a backquote, and there are an odd number of backquotes on the line, ignore
              the  trailing  backquote.  This is useful on some keyboards where the return key is too small,
              and the backquote key lies annoyingly close to  it.   As  an  alternative  the  variable  KEY-BOARD_HACK KEYBOARD_HACK
              BOARD_HACK lets you choose the character to be removed.


   Job Control
       AUTO_CONTINUE
              With this option set, stopped jobs that are removed from the job table with the disown builtin
              command are automatically sent a CONT signal to make them running.

       AUTO_RESUME (-W)
              Treat single word simple commands without redirection  as  candidates  for  resumption  of  an
              existing job.

       BG_NICE (-6) <C> <Z>
              Run all background jobs at a lower priority.  This option is set by default.

       CHECK_JOBS <Z>
              Report  the status of background and suspended jobs before exiting a shell with job control; a
              second attempt to exit the shell will succeed.  NO_CHECK_JOBS is best used only in combination
              with NO_HUP, else such jobs will be killed automatically.

              The check is omitted if the commands run from the previous command line included a `jobs' com-mand, command,
              mand, since it is assumed the user is aware that there are background or  suspended  jobs.   A
              `jobs'  command run from one of the hook functions defined in the section SPECIAL FUNCTIONS in
              zshmisc(1) is not counted for this purpose.

       HUP <Z>
              Send the HUP signal to running jobs when the shell exits.

       LONG_LIST_JOBS (-R)
              List jobs in the long format by default.

       MONITOR (-m, ksh: -m)
              Allow job control.  Set by default in interactive shells.

       NOTIFY (-5, ksh: -b) <Z>
              Report the status of background jobs immediately, rather than waiting until just before print-ing printing
              ing a prompt.

       POSIX_JOBS <K> <S>
              This option makes job control more compliant with the POSIX standard.

              When  the  option  is  not set, the MONITOR option is unset on entry to subshells, so that job
              control is no longer active.  When the option is set,  the  MONITOR  option  and  job  control
              remain  active in the subshell, but note that the subshell has no access to jobs in the parent
              shell.

              When the option is not set, jobs put in the background or foreground with bg or  fg  are  dis-played displayed
              played with the same information that would be reported by jobs.  When the option is set, only
              the text is printed.  The output from jobs itself is not affected by the option.

              When the option is not set, job information from the parent shell is saved for output within a
              subshell  (for  example,  within  a  pipeline).  When the option is set, the output of jobs is
              empty until a job is started within the subshell.

              When the option is set, it becomes possible to use the wait builtin to wait for the  last  job
              started  in  the  background (as given by $!) even if that job has already exited.  This works
              even if the option is turned on temporarily around the use of the wait builtin.


   Prompting
       PROMPT_BANG <K>
              If set, `!' is treated specially in prompt expansion.  See EXPANSION OF  PROMPT  SEQUENCES  in
              zshmisc(1).

       PROMPT_CR (+V) <D>
              Print  a  carriage  return  just  before  printing a prompt in the line editor.  This is on by
              default as multi-line editing is only possible if the editor knows where the start of the line
              appears.

       PROMPT_SP <D>
              Attempt  to  preserve  a partial line (i.e. a line that did not end with a newline) that would
              otherwise be covered up by the command prompt due to the PROMPT_CR option.  This works by out-putting outputting
              putting  some  cursor-control  characters,  including a series of spaces, that should make the
              terminal wrap to the next line when a partial line is present (note that this is only success-ful successful
              ful if your terminal has automatic margins, which is typical).

              When a partial line is preserved, by default you will see an inverse+bold character at the end
              of the partial line:  a "%" for a normal user or a "#" for root.  If set, the shell  parameter
              PROMPT_EOL_MARK can be used to customize how the end of partial lines are shown.

              NOTE:  if  the  PROMPT_CR  option  is not set, enabling this option will have no effect.  This
              option is on by default.

       PROMPT_PERCENT <C> <Z>
              If set, `%' is treated specially in prompt expansion.  See EXPANSION OF  PROMPT  SEQUENCES  in
              zshmisc(1).

       PROMPT_SUBST <K> <S>
              If  set,  parameter  expansion, command substitution and arithmetic expansion are performed in
              prompts.  Substitutions within prompts do not affect the command status.

       TRANSIENT_RPROMPT
              Remove any right prompt from display when accepting a command line.  This may be  useful  with
              terminals with other cut/paste methods.


   Scripts and Functions
       C_BASES
              Output  hexadecimal  numbers in the standard C format, for example `0xFF' instead of the usual
              `16#FF'.  If the option OCTAL_ZEROES is also set (it is not by default), octal numbers will be
              treated  similarly  and hence appear as `077' instead of `8#77'.  This option has no effect on
              the choice of the output base, nor on the output of bases other than  hexadecimal  and  octal.
              Note that these formats will be understood on input irrespective of the setting of C_BASES.

       C_PRECEDENCES
              This  alters  the  precedence  of arithmetic operators to be more like C and other programming
              languages; the section ARITHMETIC EVALUATION in zshmisc(1) has an explicit list.

       DEBUG_BEFORE_CMD
              Run the DEBUG trap before each command; otherwise it is run after each command.  Setting  this
              option  mimics the behaviour of ksh 93; with the option unset the behaviour is that of ksh 88.

       ERR_EXIT (-e, ksh: -e)
              If a command has a non-zero exit status, execute the ZERR trap, if set,  and  exit.   This  is
              disabled while running initialization scripts.

              The  behaviour  is  also disabled inside DEBUG traps.  In this case the option is handled spe-cially: specially:
              cially: it is unset on entry to the trap.  If the option DEBUG_BEFORE_CMD is set, as it is  by
              default, and the option ERR_EXIT is found to have been set on exit, then the command for which
              the DEBUG trap is being executed is skipped.  The option is restored after the trap exits.

       ERR_RETURN
              If a command has a non-zero exit status, return immediately from the enclosing function.   The
              logic  is identical to that for ERR_EXIT, except that an implicit return statement is executed
              instead of an exit.  This will trigger an exit at the outermost  level  of  a  non-interactive
              script.

       EVAL_LINENO <Z>
              If set, line numbers of expressions evaluated using the builtin eval are tracked separately of
              the enclosing environment.  This applies both to the parameter LINENO and the line number out-put output
              put  by  the  prompt  escape  %i.   If the option is set, the prompt escape %N will output the
              string `(eval)' instead of the script or function name as an  indication.    (The  two  prompt
              escapes  are  typically used in the parameter PS4 to be output when the option XTRACE is set.)
              If EVAL_LINENO is unset, the line number of the surrounding script  or  function  is  retained
              during the evaluation.

       EXEC (+n, ksh: +n) <D>
              Do  execute  commands.   Without this option, commands are read and checked for syntax errors,
              but not executed.  This option cannot be turned off in an interactive shell, except when  `-n'
              is supplied to the shell at startup.

       FUNCTION_ARGZERO <C> <Z>
              When  executing  a  shell function or sourcing a script, set $0 temporarily to the name of the
              function/script.

       LOCAL_OPTIONS <K>
              If this option is set at the point of return from a shell function,  most  options  (including
              this  one)  which  were in force upon entry to the function are restored; options that are not
              restored are PRIVILEGED and RESTRICTED.  Otherwise,  only  this  option  and  the  XTRACE  and
              PRINT_EXIT_VALUE  options are restored.  Hence if this is explicitly unset by a shell function
              the other options in force at the point of return will remain so.  A shell function  can  also
              guarantee  itself a known shell configuration with a formulation like `emulate -L zsh'; the -L
              activates LOCAL_OPTIONS.

       LOCAL_TRAPS <K>
              If this option is set when a signal trap is set inside a function, then the previous status of
              the trap for that signal will be restored when the function exits.  Note that this option must
              be set prior to altering the trap behaviour in a function; unlike LOCAL_OPTIONS, the value  on
              exit  from  the function is irrelevant.  However, it does not need to be set before any global
              trap for that to be correctly restored by a function.  For example,

                     unsetopt localtraps
                     trap - INT
                     fn() { setopt localtraps; trap '' INT; sleep 3; }

              will restore normal handling of SIGINT after the function exits.

       MULTI_FUNC_DEF <Z>
              Allow definitions of multiple functions at once in the form `fn1 fn2...()'; if the  option  is
              not  set,  this causes a parse error.  Definition of multiple functions with the function key-word keyword
              word is always allowed.  Multiple function definitions  are  not  often  used  and  can  cause
              obscure errors.

       MULTIOS <Z>
              Perform implicit tees or cats when multiple redirections are attempted (see the section `Redi-rection'). `Redirection').
              rection').

       OCTAL_ZEROES <S>
              Interpret any integer constant beginning with a 0 as octal,  per  IEEE  Std  1003.2-1992  (ISO
              9945-2:1993).  This is not enabled by default as it causes problems with parsing of, for exam-ple, example,
              ple, date and time strings with leading zeroes.

              Sequences of digits indicating a numeric base such as the `08' component in `08#77' are always
              interpreted as decimal, regardless of leading zeroes.

       SOURCE_TRACE
              If  set,  zsh  will  print an informational message announcing the name of each file it loads.
              The format of the output is similar to that for the XTRACE option, with the  message  <source-
              trace>.   A  file  may  be  loaded  by  the  shell  itself  when  it  starts up and shuts down
              (Startup/Shutdown Files) or by the use of the `source' and `dot' builtin commands.

       TYPESET_SILENT
              If this is unset, executing any of the `typeset' family of commands with no options and a list
              of  parameters  that have no values to be assigned but already exist will display the value of
              the parameter.  If the option is set, they will only be shown  when  parameters  are  selected
              with the `-m' option.  The option `-p' is available whether or not the option is set.

       VERBOSE (-v, ksh: -v)
              Print shell input lines as they are read.

       XTRACE (-x, ksh: -x)
              Print  commands and their arguments as they are executed.  The output is proceded by the value
              of $PS4, formatted as described in the section EXPANSION OF PROMPT SEQUENCES in zshmisc(1).


   Shell Emulation
       BASH_REMATCH
              When set, matches performed with the =~ operator will set  the  BASH_REMATCH  array  variable,
              instead of the default MATCH and match variables.  The first element of the BASH_REMATCH array
              will contain the entire matched text and  subsequent  elements  will  contain  extracted  sub-strings. substrings.
              strings.  This option makes more sense when KSH_ARRAYS is also set, so that the entire matched
              portion is stored at index 0 and the first substring is at index 1.  Without this option,  the
              MATCH  variable  contains  the  entire matched text and the match array variable contains sub-strings. substrings.
              strings.

       BSD_ECHO <S>
              Make the echo builtin compatible with the BSD  echo(1)  command.   This  disables  backslashed
              escape sequences in echo strings unless the -e option is specified.

       CONTINUE_ON_ERROR
              If  a  fatal error is encountered (see the section ERRORS in zshmisc(1)), and the code is run-ning running
              ning in a script, the shell will resume execution at the next statement in the script  at  the
              top  level,  in other words outside all functions or shell constructs such as loops and condi-tions. conditions.
              tions.  This mimics the behaviour of interactive shells, where the shell returns to  the  line
              editor to read a new command; it was the normal behaviour in versions of zsh before 5.0.1.

       CSH_JUNKIE_HISTORY <C>
              A  history  reference  without  an  event specifier will always refer to the previous command.
              Without this option, such a history reference refers to the same event as the previous history
              reference, defaulting to the previous command.

       CSH_JUNKIE_LOOPS <C>
              Allow loop bodies to take the form `list; end' instead of `do list; done'.

       CSH_JUNKIE_QUOTES <C>
              Changes the rules for single- and double-quoted text to match that of csh.  These require that
              embedded newlines be preceded by a backslash; unescaped newlines will cause an error  message.
              In  double-quoted  strings, it is made impossible to escape `$', ``' or `"' (and `\' itself no
              longer needs escaping).  Command substitutions are only expanded once, and cannot be nested.

       CSH_NULLCMD <C>
              Do not use the values of NULLCMD and READNULLCMD when running redirections  with  no  command.
              This make such redirections fail (see the section `Redirection').

       KSH_ARRAYS <K> <S>
              Emulate  ksh array handling as closely as possible.  If this option is set, array elements are
              numbered from zero, an array parameter without subscript refers to the first  element  instead
              of  the  whole array, and braces are required to delimit a subscript (`${path[2]}' rather than
              just `$path[2]').

       KSH_AUTOLOAD <K> <S>
              Emulate ksh function autoloading.  This means that when a function is autoloaded,  the  corre-sponding corresponding
              sponding file is merely executed, and must define the function itself.  (By default, the func-tion function
              tion is defined to the contents of the file.  However, the most common ksh-style case - of the
              file  containing  only a simple definition of the function - is always handled in the ksh-com-patible ksh-compatible
              patible manner.)

       KSH_OPTION_PRINT <K>
              Alters the way options settings are printed: instead  of  separate  lists  of  set  and  unset
              options, all options are shown, marked `on' if they are in the non-default state, `off' other-wise. otherwise.
              wise.

       KSH_TYPESET <K>
              Alters the way arguments to the typeset family of commands, including declare, export,  float,
              integer, local and readonly, are processed.  Without this option, zsh will perform normal word
              splitting after command and parameter expansion in arguments of an assignment; with  it,  word
              splitting does not take place in those cases.

       KSH_ZERO_SUBSCRIPT
              Treat  use  of  a subscript of value zero in array or string expressions as a reference to the
              first element, i.e. the element that usually has the subscript 1.  Ignored  if  KSH_ARRAYS  is
              also set.

              If  neither  this  option  nor KSH_ARRAYS is set, accesses to an element of an array or string
              with subscript zero return an empty element or string, while attempts to set element  zero  of
              an  array or string are treated as an error.  However, attempts to set an otherwise valid sub-script subscript
              script range that includes zero will succeed.  For example, if KSH_ZERO_SUBSCRIPT is not set,

                     array[0]=(element)

              is an error, while

                     array[0,1]=(element)

              is not and will replace the first element of the array.

              This option is for compatibility with older versions of the shell and is  not  recommended  in
              new code.

       POSIX_ALIASES <K> <S>
              When  this  option is set, reserved words are not candidates for alias expansion:  it is still
              possible to declare any of them as an alias, but the alias will never be  expanded.   Reserved
              words are described in the section RESERVED WORDS in zshmisc(1).

              Alias  expansion  takes  place while text is being read; hence when this option is set it does
              not take effect until the end of any function or other piece of shell code parsed as one unit.
              Note  this  may  cause  differences  from other shells even when the option is in effect.  For
              example, when running a command with `zsh -c', or even `zsh -o posixaliases  -c',  the  entire
              command  argument is parsed as one unit, so aliases defined within the argument are not avail-able available
              able even in later lines.  If in doubt, avoid use of aliases in non-interactive code.

       POSIX_BUILTINS <K> <S>
              When this option is set the command builtin can be used to  execute  shell  builtin  commands.
              Parameter assignments specified before shell functions and special builtins are kept after the
              command completes unless the special builtin is prefixed with the  command  builtin.   Special
              builtins  are  .,  :,  break, continue, declare, eval, exit, export, integer, local, readonly,
              return, set, shift, source, times, trap and unset.

              In addition, various error conditions associated with the  above  builtins  or  exec  cause  a
              non-interactive  shell to exit and an interactive shell to return to its top-level processing.

       POSIX_IDENTIFIERS <K> <S>
              When this option is set, only the ASCII characters a to z, A to Z, 0 to 9 and _ may be used in
              identifiers (names of shell parameters and modules).

              When  the  option  is unset and multibyte character support is enabled (i.e. it is compiled in
              and the option MULTIBYTE is set), then additionally any alphanumeric characters in  the  local
              character  set  may be used in identifiers.  Note that scripts and functions written with this
              feature are not portable, and also that both options must be set before the script or function
              is  parsed;  setting  them during execution is not sufficient as the syntax variable=value has
              already been parsed as a command rather than an assignment.

              If multibyte character support is not compiled into the shell  this  option  is  ignored;  all
              octets  with the top bit set may be used in identifiers.  This is non-standard but is the tra-ditional traditional
              ditional zsh behaviour.

       POSIX_STRINGS <K> <S>
              This option affects processing of quoted strings.  Currently it only affects the behaviour  of
              null characters, i.e. character 0 in the portable character set corresponding to US ASCII.

              When  this  option  is not set, null characters embedded within strings of the form $'...' are
              treated as ordinary characters. The entire string is maintained within the shell and output to
              files  where  necessary, although owing to restrictions of the library interface the string is
              truncated at the null character in file names,  environment  variables,  or  in  arguments  to
              external programs.

              When  this option is set, the $'...' expression is truncated at the null character.  Note that
              remaining parts of the same string beyond the termination of the quotes are not trunctated.

              For example, the command line argument a$'b\0c'd is treated with the option off as the charac-ters characters
              ters a, b, null, c, d, and with the option on as the characters a, b, d.

       POSIX_TRAPS <K> <S>
              When  the  is  option is set, the usual zsh behaviour of executing traps for EXIT on exit from
              shell functions is suppressed.  In that case, manipulating EXIT traps always alters the global
              trap for exiting the shell; the LOCAL_TRAPS option is ignored for the EXIT trap.

       SH_FILE_EXPANSION <K> <S>
              Perform  filename  expansion (e.g., ~ expansion) before parameter expansion, command substitu-tion, substitution,
              tion, arithmetic expansion and brace expansion.  If this option  is  unset,  it  is  performed
              after brace expansion, so things like `~$USERNAME' and `~{pfalstad,rc}' will work.

       SH_NULLCMD <K> <S>
              Do not use the values of NULLCMD and READNULLCMD when doing redirections, use `:' instead (see
              the section `Redirection').

       SH_OPTION_LETTERS <K> <S>
              If this option is set the shell tries to interpret single letter options (which are used  with
              set and setopt) like ksh does.  This also affects the value of the - special parameter.

       SH_WORD_SPLIT (-y) <K> <S>
              Causes  field  splitting  to  be  performed  on unquoted parameter expansions.  Note that this
              option has nothing to do with word splitting.  (See the section `Parameter Expansion'.)

       TRAPS_ASYNC
              While waiting for a program to exit, handle signals and run traps immediately.  Otherwise  the
              trap  is  run  after a child process has exited.  Note this does not affect the point at which
              traps are run for any case other than when the shell is waiting for a child process.


   Shell State
       INTERACTIVE (-i, ksh: -i)
              This is an interactive shell.  This option is set upon initialisation if the standard input is
              a  tty  and  commands are being read from standard input.  (See the discussion of SHIN_STDIN.)
              This heuristic may be overridden by specifying a state for this option on  the  command  line.
              The  value  of  this option can only be changed via flags supplied at invocation of the shell.
              It cannot be changed once zsh is running.

       LOGIN (-l, ksh: -l)
              This is a login shell.  If this option is not explicitly set, the shell becomes a login  shell
              if the first character of the argv[0] passed to the shell is a `-'.

       PRIVILEGED (-p, ksh: -p)
              Turn  on  privileged  mode.  This  is  enabled  automatically on startup if the effective user
              (group) ID is not equal to the real user (group) ID.   Turning  this  option  off  causes  the
              effective  user  and  group IDs to be set to the real user and group IDs. This option disables
              sourcing user startup files.  If zsh is invoked  as  `sh'  or  `ksh'  with  this  option  set,
              /etc/suid_profile  is  sourced (after /etc/profile on interactive shells). Sourcing ~/.profile
              is disabled and the contents of the ENV variable is ignored. This  option  cannot  be  changed
              using  the  -m option of setopt and unsetopt, and changing it inside a function always changes
              it globally regardless of the LOCAL_OPTIONS option.

       RESTRICTED (-r)
              Enables restricted mode.  This option cannot be changed using unsetopt, and setting it  inside
              a function always changes it globally regardless of the LOCAL_OPTIONS option.  See the section
              `Restricted Shell'.

       SHIN_STDIN (-s, ksh: -s)
              Commands are being read from the standard input.  Commands are read from standard input if  no
              command  is  specified  with  -c  and  no file of commands is specified.  If SHIN_STDIN is set
              explicitly on the command line, any argument that would otherwise have been taken as a file to
              run  will instead be treated as a normal positional parameter.  Note that setting or unsetting
              this option on the command line does not necessarily affect the state  the  option  will  have
              while  the shell is running - that is purely an indicator of whether on not commands are actu-ally actually
              ally being read from standard input.  The value of this option can only be changed  via  flags
              supplied at invocation of the shell.  It cannot be changed once zsh is running.

       SINGLE_COMMAND (-t, ksh: -t)
              If  the  shell  is  reading from standard input, it exits after a single command has been exe-cuted. executed.
              cuted.  This also makes the shell non-interactive, unless the INTERACTIVE option is explicitly
              set  on  the command line.  The value of this option can only be changed via flags supplied at
              invocation of the shell.  It cannot be changed once zsh is running.


   Zle
       BEEP (+B) <D>
              Beep on error in ZLE.

       COMBINING_CHARS
              Assume that the terminal displays combining characters correctly.   Specifically,  if  a  base
              alphanumeric  character  is  followed by one or more zero-width punctuation characters, assume
              that the zero-width characters will be displayed as modifications to the base character within
              the same width.  Not all terminals handle this.  If this option is not set, zero-width charac-ters characters
              ters are displayed separately with special mark-up.

              If this option is set, the pattern test [[:WORD:]] matches a zero-width punctuation  character
              on the assumption that it will be used as part of a word in combination with a word character.
              Otherwise the base shell does not handle combining characters specially.

       EMACS  If ZLE is loaded, turning on this option has the equivalent effect of `bindkey -e'.  In  addi-tion, addition,
              tion,  the VI option is unset.  Turning it off has no effect.  The option setting is not guar-anteed guaranteed
              anteed to reflect the current keymap.  This option is provided for compatibility;  bindkey  is
              the recommended interface.

       OVERSTRIKE
              Start up the line editor in overstrike mode.

       SINGLE_LINE_ZLE (-M) <K>
              Use single-line command line editing instead of multi-line.

              Note that although this is on by default in ksh emulation it only provides superficial compat-ibility compatibility
              ibility with the ksh line editor and reduces the effectiveness of the zsh line editor.  As  it
              has  no effect on shell syntax, many users may wish to disable this option when using ksh emu-lation emulation
              lation interactively.

       VI     If ZLE is loaded, turning on this option has the equivalent effect of `bindkey -v'.  In  addi-tion, addition,
              tion,  the  EMACS  option  is unset.  Turning it off has no effect.  The option setting is not
              guaranteed to reflect the current keymap.  This option is provided for compatibility;  bindkey
              is the recommended interface.

       ZLE (-Z)
              Use the zsh line editor.  Set by default in interactive shells connected to a terminal.


OPTION ALIASES
       Some  options  have alternative names.  These aliases are never used for output, but can be used just
       like normal option names when specifying options to the shell.

       BRACE_EXPAND
              NO_IGNORE_BRACES (ksh and bash compatibility)

       DOT_GLOB
              GLOB_DOTS (bash compatibility)

       HASH_ALL
              HASH_CMDS (bash compatibility)

       HIST_APPEND
              APPEND_HISTORY (bash compatibility)

       HIST_EXPAND
              BANG_HIST (bash compatibility)

       LOG    NO_HIST_NO_FUNCTIONS (ksh compatibility)

       MAIL_WARN
              MAIL_WARNING (bash compatibility)

       ONE_CMD
              SINGLE_COMMAND (bash compatibility)

       PHYSICAL
              CHASE_LINKS (ksh and bash compatibility)

       PROMPT_VARS
              PROMPT_SUBST (bash compatibility)

       STDIN  SHIN_STDIN (ksh compatibility)

       TRACK_ALL
              HASH_CMDS (ksh compatibility)

SINGLE LETTER OPTIONS
   Default set
       -0     CORRECT
       -1     PRINT_EXIT_VALUE
       -2     NO_BAD_PATTERN
       -3     NO_NOMATCH
       -4     GLOB_DOTS
       -5     NOTIFY
       -6     BG_NICE
       -7     IGNORE_EOF
       -8     MARK_DIRS
       -9     AUTO_LIST
       -B     NO_BEEP
       -C     NO_CLOBBER
       -D     PUSHD_TO_HOME
       -E     PUSHD_SILENT
       -F     NO_GLOB
       -G     NULL_GLOB
       -H     RM_STAR_SILENT
       -I     IGNORE_BRACES
       -J     AUTO_CD
       -K     NO_BANG_HIST
       -L     SUN_KEYBOARD_HACK
       -M     SINGLE_LINE_ZLE
       -N     AUTO_PUSHD
       -O     CORRECT_ALL
       -P     RC_EXPAND_PARAM
       -Q     PATH_DIRS
       -R     LONG_LIST_JOBS
       -S     REC_EXACT
       -T     CDABLE_VARS
       -U     MAIL_WARNING
       -V     NO_PROMPT_CR
       -W     AUTO_RESUME
       -X     LIST_TYPES
       -Y     MENU_COMPLETE
       -Z     ZLE
       -a     ALL_EXPORT
       -e     ERR_EXIT
       -f     NO_RCS
       -g     HIST_IGNORE_SPACE
       -h     HIST_IGNORE_DUPS
       -i     INTERACTIVE
       -k     INTERACTIVE_COMMENTS
       -l     LOGIN
       -m     MONITOR
       -n     NO_EXEC
       -p     PRIVILEGED
       -r     RESTRICTED
       -s     SHIN_STDIN
       -t     SINGLE_COMMAND
       -u     NO_UNSET
       -v     VERBOSE
       -w     CHASE_LINKS
       -x     XTRACE
       -y     SH_WORD_SPLIT

   sh/ksh emulation set
       -C     NO_CLOBBER
       -T     TRAPS_ASYNC
       -X     MARK_DIRS
       -a     ALL_EXPORT
       -b     NOTIFY
       -e     ERR_EXIT
       -f     NO_GLOB
       -i     INTERACTIVE
       -l     LOGIN
       -m     MONITOR
       -n     NO_EXEC
       -p     PRIVILEGED
       -r     RESTRICTED
       -s     SHIN_STDIN
       -t     SINGLE_COMMAND
       -u     NO_UNSET
       -v     VERBOSE
       -x     XTRACE

   Also note
       -A     Used by set for setting arrays
       -b     Used on the command line to specify end of option processing
       -c     Used on the command line to specify a single command
       -m     Used by setopt for pattern-matching option setting
       -o     Used in all places to allow use of long option names
       -s     Used by set to sort positional parameters



zsh 5.0.2                                     December 21, 2012                                ZSHOPTIONS(1)

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