/usr/bin/ptar is in perl 5.14.2-6ubuntu2.5.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | #!/usr/bin/perl
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if $running_under_some_shell;
#!/usr/bin/perl
use strict;
use File::Find;
use Getopt::Std;
use Archive::Tar;
use Data::Dumper;
my $opts = {};
getopts('Ddcvzthxf:IC', $opts) or die usage();
### show the help message ###
die usage() if $opts->{h};
### enable debugging (undocumented feature)
local $Archive::Tar::DEBUG = 1 if $opts->{d};
### enable insecure extracting.
local $Archive::Tar::INSECURE_EXTRACT_MODE = 1 if $opts->{I};
### sanity checks ###
unless ( 1 == grep { defined $opts->{$_} } qw[x t c] ) {
die "You need exactly one of 'x', 't' or 'c' options: " . usage();
}
my $compress = $opts->{z} ? 1 : 0;
my $verbose = $opts->{v} ? 1 : 0;
my $file = $opts->{f} ? $opts->{f} : 'default.tar';
my $tar = Archive::Tar->new();
if( $opts->{c} ) {
my @files;
find( sub { push @files, $File::Find::name;
print $File::Find::name.$/ if $verbose }, @ARGV );
if ($file eq '-') {
use IO::Handle;
$file = IO::Handle->new();
$file->fdopen(fileno(STDOUT),"w");
}
my $tar = Archive::Tar->new;
$tar->add_files(@files);
if( $opts->{C} ) {
for my $f ($tar->get_files) {
$f->mode($f->mode & ~022); # chmod go-w
}
}
$tar->write($file, $compress);
} else {
if ($file eq '-') {
use IO::Handle;
$file = IO::Handle->new();
$file->fdopen(fileno(STDIN),"r");
}
### print the files we're finding?
my $print = $verbose || $opts->{'t'} || 0;
my $iter = Archive::Tar->iter( $file );
while( my $f = $iter->() ) {
print $f->full_path . $/ if $print;
### data dumper output
print Dumper( $f ) if $opts->{'D'};
### extract it
$f->extract if $opts->{'x'};
}
}
### pod & usage in one
sub usage {
my $usage .= << '=cut';
=pod
=head1 NAME
ptar - a tar-like program written in perl
=head1 DESCRIPTION
ptar is a small, tar look-alike program that uses the perl module
Archive::Tar to extract, create and list tar archives.
=head1 SYNOPSIS
ptar -c [-v] [-z] [-C] [-f ARCHIVE_FILE | -] FILE FILE ...
ptar -x [-v] [-z] [-f ARCHIVE_FILE | -]
ptar -t [-z] [-f ARCHIVE_FILE | -]
ptar -h
=head1 OPTIONS
c Create ARCHIVE_FILE or STDOUT (-) from FILE
x Extract from ARCHIVE_FILE or STDIN (-)
t List the contents of ARCHIVE_FILE or STDIN (-)
f Name of the ARCHIVE_FILE to use. Default is './default.tar'
z Read/Write zlib compressed ARCHIVE_FILE (not always available)
v Print filenames as they are added or extracted from ARCHIVE_FILE
h Prints this help message
C CPAN mode - drop 022 from permissions
=head1 SEE ALSO
tar(1), L<Archive::Tar>.
=cut
### strip the pod directives
$usage =~ s/=pod\n//g;
$usage =~ s/=head1 //g;
### add some newlines
$usage .= $/.$/;
return $usage;
}
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