NAME
which —
locate a program file in the user's
path
SYNOPSIS
which |
[-as] command ... |
DESCRIPTION
Thewhich 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 any of the executables are found, or 1 if none are 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
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
<wosch@FreeBSD.org>.
The current version of which was rewritten in C by
Daniel Papasian
<dpapasia@andrew.cmu.edu>.