not sure about the filesystem issues, but you could try just uncompressing the file to STDOUT, read that line-by-line and do your parsing, and write to a pipe that compresses. I have done this using gzip with success (not using large files, just in general). something like this (UNTESTED):

open(INPUT, "/usr/bin/gzip -d -c '$filename' |")
open(OUTPUT, "| /usr/bin/gzip > '$filename'");

while(<INPUT>)
{
    # munge
    print OUTPUT;
}

close INPUT;
close OUTPUT;

[download]

You could also look at Compress::ZLib, which might work for you...

--
3dan

In reply to Re: File > 2G under linux by edan
in thread File > 2G under linux by rlb3

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