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$FreeBSD: releng/10.2/usr.bin/which/which.1 165169 2006-12-13 12:09:41Z ru $
.Dd December 13, 2006 .Dt WHICH 1 .Os .Sh NAME .Nm which .Nd "locate a program file in the user's path" .Sh SYNOPSIS .Nm .Op Fl as .Ar program ... .Sh DESCRIPTION The .Nm 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.
p The following options are available: l -tag -width indent t Fl a List all instances of executables found (instead of just the first one of each). t Fl s No output, just return 0 if all of the executables are found, or 1 if some were not found. .El
p Some shells may provide a builtin .Nm command which is similar or identical to this utility. Consult the .Xr builtin 1 manual page. .Sh SEE ALSO .Xr builtin 1 , .Xr csh 1 , .Xr find 1 , .Xr locate 1 , .Xr whereis 1 .Sh HISTORY The .Nm command first appeared in .Fx 2.1 . .Sh AUTHORS .An -nosplit The .Nm utility was originally written in Perl and was contributed by .An Wolfram Schneider Aq wosch@FreeBSD.org . The current version of .Nm was rewritten in C by .An Daniel Papasian Aq dpapasia@andrew.cmu.edu .