which.1 (22ae0cec0b93cfd300f69ce073256ed9a182d3b3) which.1 (9d6b125366fd8cb3675af53de07954f3b12b07c5)
1.\" Manpage Copyright (c) 1995, Jordan Hubbard <jkh@FreeBSD.org>
1.\" Copyright (c) 1995, Jordan Hubbard <jkh@freebsd.org>
2.\"
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3.\" Redistribution and use in source and binary forms, with or without
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18#
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20.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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23.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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30.\" $FreeBSD$
31.\"
32.Dd December 13, 2006
30.\" $Id$
31.Dd January 26, 1995
33.Dt WHICH 1
32.Dt WHICH 1
34.Os
33.Os FreeBSD
35.Sh NAME
36.Nm which
37.Nd "locate a program file in the user's path"
38.Sh SYNOPSIS
34.Sh NAME
35.Nm which
36.Nd "locate a program file in the user's path"
37.Sh SYNOPSIS
39.Nm
40.Op Fl as
41.Ar program ...
38.Nm which
39.Op Ar command
40.Ar ...
42.Sh DESCRIPTION
41.Sh DESCRIPTION
43The
44.Nm
45utility
42.Nm Which
46takes a list of command names and searches the path for each executable
47file that would be run had these commands actually been invoked.
43takes a list of command names and searches the path for each executable
44file that would be run had these commands actually been invoked.
48.Pp
49The following options are available:
50.Bl -tag -width indent
51.It Fl a
52List all instances of executables found (instead of just the first one
53of each).
54.It Fl s
55No output, just return 0 if all of the executables are found, or 1 if
56some were not found.
57.El
58.Pp
59Some shells may provide a builtin
60.Nm
61command which is similar or identical to this utility.
62Consult the
63.Xr builtin 1
64manual page.
65.Sh SEE ALSO
66.Xr builtin 1 ,
67.Xr csh 1 ,
68.Xr find 1 ,
69.Xr locate 1 ,
70.Xr whereis 1
71.Sh HISTORY
72The
73.Nm
45.Sh HISTORY
46The
47.Nm
74command first appeared in
75.Fx 2.1 .
76.Sh AUTHORS
77.An -nosplit
78The
79.Nm
80utility was originally written in Perl and was contributed by
81.An Wolfram Schneider Aq wosch@FreeBSD.org .
82The current version of
83.Nm
84was rewritten in C by
85.An Daniel Papasian Aq dpapasia@andrew.cmu.edu .
48command first appeared in FreeBSD 2.1
49.Sh SEE ALSO
50.Xr perl 1
51.Sh AUTHOR
52The PERL script for this more modern version of
53.Nm which
54was written by Wolfram Schneider <wosch@cs.tu-berlin.de>.