which(1) USER COMMANDS which(1)
NAME
which - locate a command; display its pathname or alias
SYNOPSIS
/usr/ucb/which [ filename ] ...
DESCRIPTION
which takes a list of names and looks for the files which
would be executed had these names been given as commands.
Each argument is expanded if it is aliased, and searched for
along the user's path. Both aliases and path are taken from
the user's .cshrc file.
FILES
~/.cshrc source of aliases and path values
SEE ALSO
csh(1), ksh(1), sh(1) in the User's Reference Manual.
DIAGNOSTICS
A diagnostic is given for names which are aliased to more
than a single word, or if an executable file with the argu-
ment name was not found in the path.
NOTES
Only aliases and paths from ~/.cshrc are used; importing
from the current environment is not attempted. which must
be executed by csh(1), since only csh knows about aliases.
If you are using sh instead of csh, whence -v provides simi-
lar functionality. To compensate for ~/.cshrc files in
which aliases depend upon the prompt variable being set,
which sets this variable. If the ~/.cshrc produces output
or prompts for input when prompt is set, which may produce
some strange results.
Last change: BSD Compatibility Package 1