1.\" Manpage Copyright (c) 1995, Jordan Hubbard <jkh@freebsd.org> 2.\" 3.\" Redistribution and use in source and binary forms, with or without 4.\" modification, are permitted provided that the following conditions 5.\" are met: 6.\" 1. Redistributions of source code must retain the above copyright 7.\" notice, this list of conditions and the following disclaimer. 8.\" 2. Redistributions in binary form must reproduce the above copyright 9.\" notice, this list of conditions and the following disclaimer in the 10.\" documentation and/or other materials provided with the distribution. 11.\" 3. All advertising materials mentioning features or use of this software 12.\" must display the following acknowledgement: 13.\" This product includes software developed by the FreeBSD Project 14.\" its contributors. 15.\" 4. Neither the name of the FreeBSD Project nor the names of its contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTOR ``AS IS'' AND ANY EXPRESS OR 20.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22.\" IN NO EVENT SHALL THE CONTRIBUTOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28.\" OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29.\" 30.\" $Id: which.1,v 1.11 1998/05/15 11:22:42 jkoshy Exp $ 31.Dd January 26, 1995 32.Dt WHICH 1 33.Os FreeBSD 34.Sh NAME 35.Nm which 36.Nd "locate a program file in the user's path" 37.Sh SYNOPSIS 38.Nm which 39.Op Fl as 40.Op Ar command 41.Ar ... 42.Sh DESCRIPTION 43.Nm Which 44takes a list of command names and searches the path for each executable 45file that would be run had these commands actually been invoked. 46.Pp 47The following options are available: 48.Bl -tag -width indent 49.It Fl a 50List all instances of executables found (instead of just the first one 51of each). 52.It Fl s 53No output, just return 0 if any of the executables are found, or 1 if 54none are found. 55.Sh HISTORY 56The 57.Nm 58command first appeared in 59.Fx 2.1 . 60.Sh SEE ALSO 61.Xr find 1 , 62.Xr locate 1 , 63.Xr perl 1 , 64.Xr whereis 1 65.Sh AUTHORS 66The PERL script for this more modern version of 67.Nm 68was written by 69.An Wolfram Schneider Aq wosch@FreeBSD.org . 70