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Annotation of src/usr.bin/which/which.1, Revision 1.23

1.23    ! jmc         1: .\"    $OpenBSD: which.1,v 1.22 2011/10/09 02:20:39 schwarze Exp $
1.12      aaron       2: .\"
1.1       deraadt     3: .\" Copyright (c) 1980, 1991 Regents of the University of California.
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                     30: .\"     from: @(#)which.1      6.3 (Berkeley) 4/23/91
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1.23    ! jmc        32: .Dd $Mdocdate: October 9 2011 $
1.1       deraadt    33: .Dt WHICH 1
1.4       millert    34: .Os
1.1       deraadt    35: .Sh NAME
                     36: .Nm which
1.4       millert    37: .Nd "locate a program file (or files) in the path"
1.1       deraadt    38: .Sh SYNOPSIS
                     39: .Nm which
1.6       millert    40: .Op Fl a
1.16      sobrado    41: .Ar name ...
1.1       deraadt    42: .Sh DESCRIPTION
1.12      aaron      43: .Nm
1.1       deraadt    44: takes a list of names and looks for the files which would be
                     45: executed had these names been given as commands.
1.4       millert    46: Each argument is searched for along the user's path.
1.6       millert    47: .Pp
                     48: If the
                     49: .Fl a
                     50: flag is given,
                     51: .Nm
                     52: will return a list of all matches instead of just the first match.
1.20      jmc        53: .Sh ENVIRONMENT
                     54: The following environment variables affect the execution of
                     55: .Nm which :
                     56: .Bl -tag -width PATH
                     57: .It Ev PATH
                     58: A colon-separated list of directories in which to find executables.
                     59: If
                     60: .Ev PATH
                     61: is not set, and the given name is not a fully qualified
                     62: or relative pathname,
                     63: .Nm
                     64: will fail.
                     65: .El
                     66: .Sh EXIT STATUS
1.3       niklas     67: The
1.4       millert    68: .Nm
1.3       niklas     69: utility exits with one of the following values:
1.11      aaron      70: .Pp
1.20      jmc        71: .Bl -tag -width Ds -offset indent -compact
1.3       niklas     72: .It 0
1.8       aaron      73: All names were successfully resolved.
1.3       niklas     74: .It 1
1.8       aaron      75: Some names were resolved but not all.
1.3       niklas     76: .It 2
1.8       aaron      77: No names were resolved.
1.1       deraadt    78: .El
1.14      jmc        79: .Sh DIAGNOSTICS
                     80: A diagnostic is given if an executable file with the argument
                     81: name was not found in the path.
1.12      aaron      82: .Sh SEE ALSO
                     83: .Xr csh 1 ,
                     84: .Xr find 1 ,
                     85: .Xr locate 1 ,
                     86: .Xr whereis 1 ,
                     87: .Xr environ 7
1.18      jmc        88: .Sh STANDARDS
                     89: .Nm
                     90: also exists as a built-in to
                     91: .Xr csh 1 ,
                     92: though with a different syntax.
1.12      aaron      93: .Sh HISTORY
                     94: A
                     95: .Nm
1.22      schwarze   96: command first appeared in
1.12      aaron      97: .Bx 3.0 .
1.23    ! jmc        98: .Pp
1.22      schwarze   99: The
                    100: .Fl a
                    101: option first appeared in
                    102: .Ox 2.3 .