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Hi Monks!

I'm seeing some unusual IO::Uncompress::Gunzip behavior, that doesn't seem to track with how the gzip command works. Please help me understand this difference. Basically, if I have a number of gzipped files in a directory, and run the command

cat files* | gunzip -c
I get the contents of all the files to stdout. However, if I do a similar thing from inside a perl script, using IO::Uncompress::Gunzip, I only get the contents of the first file. Here is my test script (for unix):
use strict; use warnings; use IO::Compress::Gzip qw(gzip $GzipError) ; use IO::Uncompress::Gunzip qw(gunzip $GunzipError) ; my $file; for my $txt ( qw(File1| File2| File3|) ) { $file = "/tmp/tst${txt}.gz"; print STDERR "$file\n"; gzip \$txt => $file or die "gzip failed: $GunzipError\n"; } my $contents = `cat /tmp/tst*`; print STDERR "contents=$contents\n"; my $out; gunzip \$contents => \$out or die "gunzip failed: $GunzipError\n"; print STDERR "Here comes the decrypted stuff:\n$out\n"; print STDERR "Now we use the gunzip command to do the same:\n"; print STDERR `cat /tmp/tst* | gunzip -c`;
Any pointers are greatly appreciated!

Thanks

-Craig


In reply to Unusual IO::Uncompress::Gunzip behavior by cmv

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