which(1) UNIX System V(BSD Compatibility Package) 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 argument 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 similar
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.
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