Untaring with perl

mrbbq has asked for the wisdom of the Perl Monks concerning the following question:

Hello Monks, I feel kinda like lame asking this question but I am at a real loss. I have a .tgz file in /tmp and I need a perl script to extract the contents to disk say also to /tmp. I have been through archive::tar and cant seem to get my groove on. Can someone show me in the simplest form how to get perl to untar anything.tgz in /tmp

Thanks

Retitled by g0n from 'Untaring'.

Comment on Untaring with perl

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Re: Untaring with perl by halley (Prior) on Aug 24, 2005 at 17:28 UTC
The ".tgz" is an abbreviated file extension indicating ".tar.gz" which is a tarball that was subsequently compressed with gzip. (Of course, a filename does not actually prove what is in the file, it could be a spreadsheet and not a tarball at all, for all we know.) According to Archive::Tar, the module WILL deal with this but only if you have IO::Zlib also installed. -- `[ e d @ h a l l e y . c c ]`	[reply]
Re^2: Untaring with perl by mrbbq (Sexton) on Aug 24, 2005 at 18:04 UTC
Its installed, thanks for your reply.	[reply]
Re: Untaring with perl by liverpole (Monsignor) on Aug 24, 2005 at 17:24 UTC
How about just doing ...? `#!/usr/bin/perl -w my $file = "/tmp/anything.tgz"; system("tar -vxzf $file");` [download]	[reply] [d/l]
Re: Untaring with perl by gryphon (Abbot) on Aug 24, 2005 at 17:30 UTC
Greetings mrbbq, This is untested, and I only just now tossed it together, but is this what you're asking for? `use Archive::Tar; my $tar = Archive::Tar->new; chdir '/tmp' or die $!; $tar->read('anything.tgz', 1, { 'extract' => 1 } );` [download] I'd rather not have to chdir; instead, I'd like to tell Archive::Tar where to extract the files. How to do that is probably in the POD somewhere. gryphon Whitepages.com Development Manager (DSMS) code('Perl') \|\| die;	[reply] [d/l]
Re^2: Untaring with perl by mrbbq (Sexton) on Aug 24, 2005 at 18:08 UTC
Works perfect, thank you.	[reply]
Re^2: Untaring with perl by mrbbq (Sexton) on Aug 24, 2005 at 18:19 UTC
could anything.tgz be a variable? $tar->read('$tar_file",1, { 'extract' => 1 }); I could not get it to work passing a variable...ideas? thanks	[reply]
Re^3: Untaring with perl by gryphon (Abbot) on Aug 24, 2005 at 20:00 UTC
Greetings mrbbq, You have a single-quote just before $tar_file that doesn't match the double-quote at the end. You should either change the single to a double, or (and better) just drop the quotes. `use strict; my $tar_file = 'anything.tgz'; $tar->read( $tar_file, 1, { 'extract' => 1 } );` [download] gryphon Whitepages.com Development Manager (DSMS) code('Perl') \|\| die;	[reply] [d/l]
Re: Untaring with perl by derby (Abbot) on Aug 24, 2005 at 17:29 UTC
Hmmm ... straight from the perldocs: `use Archive::Tar; my $tar = Archive::Tar->new; $tar->read('origin.tgz',1); $tar->extract();` [download] What seems to be the problem? -derby	[reply] [d/l]
Re^2: Untaring with perl by mrbbq (Sexton) on Aug 24, 2005 at 18:05 UTC
Yeah I know...I read it, looked at it couldnt get it to work? Thanks for your reply.	[reply]
Re: Untaring with perl by ait (Hermit) on Aug 24, 2005 at 17:40 UTC
perldoc -f exec perldoc -f system my favorite: you can execute a shell command by using the backtick assigning the result to a variable: my $hoo = `tar xvfz /tmp/foo`; (note that in the example you will not get the actual contents of the tar, you will only get the listing that the tar command outputs) -- Alejandro	[reply]

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