Re^2: Parsing a large file 80GB .gz file and making an output file with specifice columns in this original file.

why would you want to use the two-argument form when you can use the five-argument form?

open my $fh, '-|', 'gunzip', '-cd', $filename
    or die "Couldn't decompress '$filename' via gunzip: $! / $?";
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Re^3: Parsing a large file 80GB .gz file and making an output file with specifice columns in this original file. by Corion (Patriarch) on Jul 16, 2013 at 12:02 UTC
I use the two-argument form because the three-argument form fails for me on Windows, unfortunately: `>perl -we "my $fn= shift; open fh, '\|-', 'gunzip', '-cd', $fh or warn +$!" foo.gz List form of pipe open not implemented at -e line 1.` [download]	[reply] [d/l]