zsh - the Z shell
Because zsh contains many features, the zsh manual has been
split into a number of sections:
zsh Zsh overview (this section)
zshbuiltins Zsh built-in functions
zshcompctl Zsh completion control
zshexpn Zsh command and parameter expansion
zshparam Zsh parameters
zshzle Zsh command line editing
zshoptions Zsh options
zshmisc Currently everything else
Zsh is a UNIX command interpreter (shell) usable as an
interactive login shell and as a shell script command
processor. Of the standard shells, zsh most closely
resembles ksh but includes many enhancements. Zsh has
comand line editing, builtin spelling correction,
programmable command completion, shell functions (with
autoloading), a history mechanism, and a host of other
If the -s flag is not present and an argument is given, the
first argument is taken to be the pathname of a script to
execute. The remaining arguments are assigned to the
positional parameters. The following flags are interpreted
by the shell when invoked:
Read commands from string.
-i Force shell to be interactive.
-s Read command from the standard input.
Commands are first read from /etc/zshenv. If the -f flag is
present or if the NO_RCS option is set within /etc/zshenv,
all other initialization files are skipped. Otherwise,
commands are read from $ZDOTDIR/.zshenv. (If ZDOTDIR is
unset, HOME is used instead). If the first character of
argument zero passed to the shell is -, or if the -l flag is
present, then the shell is assumed to be a login shell, and
commands are read from /etc/zprofile and then
$ZDOTDIR/.zprofile. Then, if the shell is interactive,
commands are read from /etc/zshrc and then $ZDOTDIR/.zshrc.
Finally, if the shell is a login shell, /etc/zlogin and
$ZDOTDIR/.zlogin are read.
Zsh was originally written by Paul Falstad <email@example.com>.
Programmable completion was implemented by Sven Wischnowsky
<firstname.lastname@example.org> and Peter Stephenson
<P.Stephenson@swansea.ac.uk>. Zsh is currently maintained
by the members of the zsh workers mailing list zsh-
email@example.com and coordinated by Richard Coleman
sh(1), csh(1), tcsh(1), rc(1), bash(1), ksh(1),
zshbuiltins(1), zshcompctl(1), zshexpn(1), zshparam(1),
zshzle(1), zshoptions(1), zshmisc(1)