65 lines
1.1 KiB
Perl
Executable File
65 lines
1.1 KiB
Perl
Executable File
#!@@@perl@@@ -w
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=head1 NAME
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apppath - append directories to path
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=head1 SYNOPSIS
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apppath [-c] [-v variable] directory...
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=head1 DESCRIPTION
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apppath appends the directories given as arguments to the PATH and
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prints the new path on stdout.
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=head1 OPTIONS
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=over 4
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=item B<-c>
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Check whether the directories exist before adding them. Nonexistent
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directories are silently ignored.
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=item B<-v> I<variable>
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Use the environment variable I<variable> instead of PATH.
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This is useful for manipulating other PATH-like variables, like
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LD_LIBRARY_PATH, PERL5LIB, etc.
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=back
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=head1 AUTHOR
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Peter J. Holzer <hjp@hjp.at>.
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=cut
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use strict;
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use Getopt::Long;
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use Pod::Usage;
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my $check;
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my $debug;
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my $var = 'PATH';
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GetOptions("check" => \$check,
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"debug" => \$debug,
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"var=s" => \$var,
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) or pod2usage(2);
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my $path = $ENV{$var} || '';
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my @path = split(/:/, $path);
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if ($#ARGV == 0 && $ARGV[0] =~ /:/) {
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@ARGV = split(/:/, $ARGV[0]);
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}
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nd: for my $nd (@ARGV) {
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for my $od (@path) {
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next nd if ($nd eq $od);
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}
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push @path, $nd if (!$check || -d $nd);
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}
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print join(':', @path), "\n";
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