60 lines
2.2 KiB
Perl
Executable File
60 lines
2.2 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
#
|
|
# Copyright (C) 1995, Wolfram Schneider <wosch@cs.tu-berlin.de>
|
|
#
|
|
# 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.
|
|
# 3. All advertising materials mentioning features or use of this software
|
|
# must display the following acknowledgement:
|
|
# This product includes software developed by Wolfram Schneider
|
|
# and the FreeBSD Project.
|
|
# 4. Neither the name of the University nor the names of its contributors
|
|
# may be used to endorse or promote products derived from this software
|
|
# without specific prior written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTOR ``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 CONTRIBUTOR 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.
|
|
#
|
|
# [whew!]
|
|
#
|
|
# $Id: which.pl,v 1.3 1995/01/30 17:49:19 asami Exp $
|
|
|
|
$all = 0;
|
|
$silent = 0;
|
|
$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:\n\twhich [-a] [-s] program ...\n";
|
|
}
|
|
|
|
foreach $prog (@ARGV) {
|
|
foreach $e (@path) {
|
|
if (-x "$e/$prog") {
|
|
print "$e/$prog\n" unless $silent;
|
|
$found = 1;
|
|
last unless $all;
|
|
}
|
|
}
|
|
}
|
|
|
|
exit (!$found);
|