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- #!/usr/bin/perl -w
-
- use Archive::Tar;
- use File::Find;
-
- $switches = shift @ARGV;
- $tarfile = "./default.tar";
- $create=0;
- $list=0;
- $extract=0;
- $debug=0;
-
- if (!$switches) {
- print<<EOF;
- usage: tar [xct][v][f][z] [archive_file] [files...]
- x Extract from archive_file
- c Make archive_file from files
- t Print contents of archive_file
- f First argument is name of archive_file, default is ./default.tar
- v Print filenames as they are added to archive_file
- z Read/write gnuzip-compressed archive_file (not always available)
- EOF
- exit;
- }
-
- foreach (split(//,$switches)) {
- if ($_ eq "x") {
- $extract = 1;
- }
- elsif ($_ eq "t") {
- $list = 1;
- }
- elsif ($_ eq "c") {
- $create = 1;
- }
- elsif ($_ eq "z") {
- $compress = 1;
- }
- elsif ($_ eq "f") {
- $tarfile = shift @ARGV;
- }
- elsif ($_ eq "v") {
- $verbose = 1;
- }
- elsif ($_ eq "d") {
- $debug = 1;
- }
- elsif ($_ eq "-") {
- # Oh, a leading dash! How cute!
- }
- else {
- warn "Unknown switch: $_\n";
- }
- }
-
- if ($extract+$list+$create>1) {
- die "More than one of x, c and t doesn't make sense.\n";
- }
-
- if ($list) {
- $arc = Archive::Tar->new($tarfile,$compress);
- print join "\n", $arc->list_files,"";
- }
-
- if ($extract) {
- $arc = Archive::Tar->new($tarfile,$compress);
- $arc->extract($arc->list_files);
- }
-
- if ($create) {
- my @f;
-
- $arc = Archive::Tar->new();
- finddepth(sub {push @f,$File::Find::name; print $File::Find::name,"\n" if $verbose},@ARGV);
- $arc->add_files(@f);
- $arc->write($tarfile,$compress);
- }
-