Current File : //usr/local/share/zsh/5.8/help/which
whence [ -vcwfpamsS ] [ -x num ] name ...
For each name, indicate how it would be interpreted if used as a
command name.
If name is not an alias, built-in command, external command, shell
function, hashed command, or a reserved word, the exit status
shall be non-zero, and -- if -v, -c, or -w was passed -- a message
will be written to standard output. (This is different from other
shells that write that message to standard error.)
whence is most useful when name is only the last path component of
a command, i.e. does not include a `/'; in particular, pattern
matching only succeeds if just the non-directory component of the
command is passed.
-v Produce a more verbose report.
-c Print the results in a csh-like format. This takes
precedence over -v.
-w For each name, print `name: word' where word is one of
alias, builtin, command, function, hashed, reserved or
none, according as name corresponds to an alias, a built-in
command, an external command, a shell function, a command
defined with the hash builtin, a reserved word, or is not
recognised. This takes precedence over -v and -c.
-f Causes the contents of a shell function to be displayed,
which would otherwise not happen unless the -c flag were
used.
-p Do a path search for name even if it is an alias, reserved
word, shell function or builtin.
-a Do a search for all occurrences of name throughout the
command path. Normally only the first occurrence is
printed.
-m The arguments are taken as patterns (pattern characters
should be quoted), and the information is displayed for
each command matching one of these patterns.
-s If a pathname contains symlinks, print the symlink-free
pathname as well.
-S As -s, but if the pathname had to be resolved by following
multiple symlinks, the intermediate steps are printed, too.
The symlink resolved at each step might be anywhere in the
path.
-x num Expand tabs when outputting shell functions using the -c
option. This has the same effect as the -x option to the
functions builtin.
type [ -wfpamsS ] name ...
Equivalent to whence -v.
where [ -wpmsS ] [ -x num ] name ...
Equivalent to whence -ca.
which [ -wpamsS ] [ -x num ] name ...
Equivalent to whence -c.
Mini Shell