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Think about Loose Coupling

gzip / gunzip

by wufnik (Friar)
on Jul 09, 2004 at 23:12 UTC ( #373286=snippet: print w/replies, xml ) Need Help??
Description: simple gzip & gunzip functionality without nasty "system's" calls. deals with extensions relatively intelligently. illustrates & requires use of Compress::Zlib.
use Compress::Zlib;
use strict;
foreach my $f ( grep { -f } @ARGV ){
    my ($buffer,$gz);
    if ($f=~/gz$/){
    (my $rtf = $f) =~ s/(.)gz$//;
    open OOT, ">$rtf" or die "$0:$rtf:$!";    
    binmode OOT;    
    $gz = gzopen($f, "rb") or die "$0:$gzerrno:$!";
    print OOT $buffer while $gz->gzread($buffer) > 0;
    die "$f: $gzerrno:$!" if $gzerrno != Z_STREAM_END;
    } else { # gzip our file
    open COOT, "$f" or die "$0:$f:$!";
    binmode COOT;
    $gz = gzopen("$f.gz", "wb") 
        or die "$0:$gzerrno:$!";
    while (<COOT>){
        $gz->gzwrite($_) or die "$f.gz,$gzerrno:$!";
Replies are listed 'Best First'.
Re: gzip / gunzip
by hossman (Prior) on Jul 10, 2004 at 07:58 UTC

    see also the source to Tie::Gzip which demonstrates (un)gzip using Compress::Zlib if installed.

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