This file is indexed.

/usr/bin/ptar is in perl 5.26.1-6ubuntu0.3.

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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
#!/usr/bin/perl
    eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
	if $running_under_some_shell;
#!/usr/bin/perl
use strict;

BEGIN { pop @INC if $INC[-1] eq '.' }
use File::Find;
use Getopt::Std;
use Archive::Tar;
use Data::Dumper;

# Allow historic support for dashless bundled options
#  tar cvf file.tar
# is valid (GNU) tar style
@ARGV && $ARGV[0] =~ m/^[DdcvzthxIC]+[fT]?$/ and
    unshift @ARGV, map { "-$_" } split m// => shift @ARGV;
my $opts = {};
getopts('Ddcvzthxf:ICT:', $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;
    my @src = @ARGV;
    if( $opts->{T} ) {
      if( $opts->{T} eq "-" ) {
        chomp( @src = <STDIN> );
	} elsif( open my $fh, "<", $opts->{T} ) {
	    chomp( @src = <$fh> );
	} else {
	    die "$0: $opts->{T}: $!\n";
	}
    }

    find( sub { push @files, $File::Find::name;
                print $File::Find::name.$/ if $verbose }, @src );

    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 -c [-v] [-z] [-C] [-T index | -] [-f ARCHIVE_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
    T   get names to create from file

=head1 SEE ALSO

L<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;
}