👤
Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:
Select Section of Man Page:
Select Man Page Repository:

CentOS 7.0 - man page for zshoptions (centos section 1)

ZSHOPTIONS(1)									    ZSHOPTIONS(1)

NAME
       zshoptions - zsh options

SPECIFYING OPTIONS
       Options	are  primarily	referred to by name.  These names are case insensitive and under-
       scores 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  equivalent 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  inver-
       sion of `notify').

       Some options also have one or more single letter names.	There are two sets of single let-
       ter 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 com-
       mand 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 single letter option names refer to an option being off, in which case  the  inver-
       sion  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  `#!'  mecha-
       nism 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 appro-
       priate.	 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 directory, 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 inter-
	      active 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 otherwise 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 direc-
	      tory 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  comple-
	      tion 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 comple-
	      tion, 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 available 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 charac-
	      ter  is  deleted, so that the character 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 charac-
	      ter 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  com-
	      pletion  is attempted.  The effect is to make the alias a distinct command for com-
	      pletion purposes.

       COMPLETE_IN_WORD
	      If unset, the cursor is set to the end of the word if completion is started. Other-
	      wise 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 contains a pattern; simply turning on  the	GLOB_COM-
	      PLETE option does not have this effect.

       HASH_LIST_ALL <D>
	      Whenever	a  command  completion or spelling correction is attempted, make sure the
	      entire command 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 wid-
	      gets 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 columns 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  special  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: glob-
	      bing  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 sub-
	      stitution as being  eligible  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 zsh-
	      expn(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 syntactically 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  syntac-
	      tically  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 com-
	      mand name have filename expansion (that is, where expression has a leading  `~'  or
	      `=') performed on expression 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  assignment.   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, parameter values and various delimiters.

	      The option is on by default if the shell was compiled with MULTIBYTE_SUPPORT except
	      in sh emulation; 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 file-
	      names numerically 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	substituted 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 history 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  specified	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 dura-
	      tion (in seconds) 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, set-
	      ting 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 number 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 avoid-
	      ing 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 command 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 pre-
	      vious 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  van-
	      ishes, allowing you to briefly reuse or edit the line.  If you want to make it van-
	      ish 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 consequence that references to words in history lines  that  have
	      been  read  from	a file may be inaccurate.  When this option is set, words read in
	      from a history file are divided up in a similar 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
	      $HISTFILE.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 history-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 permis-
	      sions 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  $HISTFILE  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  commands  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  environment  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  behaviour 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 portable 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, .zpro-
	      file, /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 others 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.  Oth-
	      erwise `>!' 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 consecutive EOFs will cause the shell to exit anyway, to avoid the shell  hang-
	      ing 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  nor-
	      mal  warning  message.  This works only for normal widgets, not for completion wid-
	      gets.

       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  invo-
	      cations  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
	      directories 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 commands, 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 benefi-
	      cial.

       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  com-
	      mand  `/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 executa-
	      bles specified in this form.  This takes place before any search indicated by  this
	      option,  and  regardless of whether `.' or the current directory appear in the com-
	      mand 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 KEYBOARD_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' command, 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 printing 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  displayed  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 out-
	      put 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  outputting  some  cursor-control characters, including a
	      series of spaces, that should make the terminal wrap to the next line when  a  par-
	      tial  line is present (note that this is only successful if your terminal has auto-
	      matic 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 per-
	      formed 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 pro-
	      gramming 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 be-
	      haviour 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 han-
	      dled specially: 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 output 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  parame-
	      ter  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  evalua-
	      tion.

       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 previ-
	      ous 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 func-
	      tion; 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 keyword 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 `Redirection').

       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 prob-
	      lems with parsing of, for example, 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  <sourcetrace>.  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 substrings.  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 substrings.

       BSD_ECHO <S>
	      Make the echo builtin compatible with the BSD echo(1) command.  This disables back-
	      slashed 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 running 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  con-
	      structs  such  as  loops	and conditions.  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 sub-
	      script (`${path[2]}' rather than just `$path[2]').

       KSH_AUTOLOAD <K> <S>
	      Emulate  ksh  function autoloading.  This means that when a function is autoloaded,
	      the corresponding file is merely executed, and must  define  the	function  itself.
	      (By  default,  the  function  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-compatible 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' otherwise.

       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 refer-
	      ence 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 subscript range that includes zero will succeed.  For  exam-
	      ple, 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 recom-
	      mended 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  zsh-
	      misc(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 available 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 pre-
	      fixed 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 dur-
	      ing 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 traditional 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 corre-
	      sponding 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 characters 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
	      substitution, arithmetic expansion and brace expansion.  If this option  is  unset,
	      it  is  performed  after	brace expansion, so things like `~$USERNAME' and `~{pfal-
	      stad,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 - spe-
	      cial 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  stan-
	      dard input is a tty and commands are being read from standard input.  (See the dis-
	      cussion 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  run-
	      ning.

       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 regard-
	      less 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  actually	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  executed.	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	modifica-
	      tions  to the base character within the same width.  Not all terminals handle this.
	      If this option is not set, zero-width characters are displayed separately with spe-
	      cial 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 charac-
	      ters specially.

       EMACS  If ZLE is loaded, turning on this option has the equivalent effect of `bindkey -e'.
	      In  addition,  the  VI  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.

       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 superfi-
	      cial compatibility 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 dis-
	      able this option when using ksh emulation interactively.

       VI     If ZLE is loaded, turning on this option has the equivalent effect of `bindkey -v'.
	      In  addition, 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 ter-
	      minal.

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)


All times are GMT -4. The time now is 02:46 PM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
×
UNIX.COM Login
Username:
Password:  
Show Password