WHICH(1) – General Commands Manual

NAME

which – locate a program file in the user’s path

SYNOPSIS

which
[-as]
program …

DESCRIPTION

The
which
utility
takes a list of command names and searches the path for each executable
file that would be run had these commands actually been invoked.

The following options are available:

-a

List all instances of executables found (instead of just the first one
of each).

-s

No output, just return 0 if all of the executables are found, or 1 if
some were not found.

Some shells may provide a builtin
which
command which is similar or identical to this utility.
Consult the
builtin(1)
manual page.

SEE ALSO

builtin(1),
csh(1),
find(1),
locate(1),
whereis(1)

HISTORY

The
which
command first appeared in
FreeBSD 2.1.

AUTHORS

The
which
utility was originally written in Perl and was contributed by
Wolfram Schneider <[email protected]>.
The current version of
which
was rewritten in C by
Daniel Papasian <[email protected]>.

macOS 12.6 – December 13, 2006