which.1


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

.\" -*- nroff -*-
.TH WHICH 1 "1 May 2009" "Debian"
.SH NAME
which \- locate a command
.SH SYNOPSIS
which [\-a] filename ...
.SH DESCRIPTION
.B which
returns the pathnames of the files (or links) which would be executed
in the current environment, had its arguments been given as commands
in a strictly POSIX-conformant shell.  It does this by searching the
PATH for executable files matching the names of the arguments. It does
not follow symbolic links.
.SH OPTIONS
.TP
.B \-a
print all matching pathnames of each argument
.SH EXIT STATUS
.TP
.B 0
if all specified commands are found and executable
.TP
.B 1
if one or more specified commands is nonexistent or not executable
.TP
.B 2
if an invalid option is specified