56 lines
1.9 KiB
Perl
Executable File
56 lines
1.9 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
#
|
|
# Copyright (c) 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
# 1. Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
# SUCH DAMAGE.
|
|
#
|
|
# $Id: which.pl,v 1.10 1997/02/22 19:57:51 peter Exp $
|
|
|
|
$all = $silent = $found = 0;
|
|
@path = split(/:/, $ENV{'PATH'});
|
|
|
|
if ($ARGV[0] eq "-a") {
|
|
$all = 1; shift @ARGV;
|
|
} elsif ($ARGV[0] eq "-s") {
|
|
$silent = 1; shift @ARGV;
|
|
} elsif ($ARGV[0] =~ /^-(h|help|\?)$/) {
|
|
die "usage: which [-a] [-s] program ...\n";
|
|
}
|
|
|
|
foreach $prog (@ARGV) {
|
|
if ("$prog" =~ '/' && -x "$prog") {
|
|
print "$prog\n" unless $silent;
|
|
$found = 1;
|
|
} else {
|
|
foreach $e (@path) {
|
|
if (-x "$e/$prog") {
|
|
print "$e/$prog\n" unless $silent;
|
|
$found = 1;
|
|
last unless $all;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
exit (!$found);
|