A “gzip” file and a “zip” file are not quite the same.   Compress::Zlib should be the appropriate module for your purposes.   (A search for “compress gzip” at http://search.cpan.org provides plenty of working examples.

Thanks. That works fine. There's some issue with writing the results to a zipped file. I used a code ------ my $gz=gzopen("test.vcf.gz","wb"); $gz -> gzwrite(@dose); $gz ->gzclose; ------------------ What my intention was to get a file with contents of @dose in a compressed .gz file - test.vcf.gz What's wrong in this? I am getting a file test.vcf.gz which has just one line ! Thank you. P.

Are you having a problem with Archive::Zip which you care to discuss?

Hi, Thank you for the response. I tried to read file using Archive::Zip code looks like -- #!/usr/bin/perl use warnings; use strict; use Archive::Zip qw( :ERROR_CODES ); # Read a Zip file my $somezip = Archive::Zip->new(); my $fname = $ARGV[0]; unless ( $somezip->read( "$fname" ) == AZ_OK ) { die 'read error'; -------------------------------- The code is throwing en error which says- 'format error: Can't find EOCD signature' File is a .gz file. Do you have an idea what this error is about? Thank you.

 use Archive::Extract;
        ### build an Archive::Extract object ###
        my $ae = Archive::Extract->new( archive => 'foo.tgz' );

        ### extract to cwd() ###
        my $ok = $ae->extract;

        ### extract to /tmp ###
        my $ok = $ae->extract( to => '/tmp' );

        ### what if something went wrong?
        my $ok = $ae->extract or die $ae->error;
...
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Perfecto...

I neglected to say that modules like Compress::Zlib are low-level functionality, upon which other, higher-level CPAN modules have been constructed.   Search for the CPAN module which most closely matches what you are trying to achieve, and let them use the lower level routines on your behalf.