Maybe I'm wrong, but I suppose that those 5 minutes are just to make a list of files in a direcotry. The speed of operation depends mostly on your filesystem speed (for example Linux ext2 is much slower than ReiserFS - even in beta-experimental version).
While you can do nothing to speed this up, you can do some work-around... At first I suggest to make list of those 4000 files and write it somewhere. Then you can try something like this:
#!/usr/bin/perl
use strict;
open (FH, "<files.list") || die "Can't find files.list: $!\n";
my @files = <FH>;
close (FH);
while (my $file = shift(@files)) {
chomp ($file);
open (FILE, "$file") || warn "Warning: can't open $file, skipping.
+..\n";
while (<FILE>) {
chomp;
if (/\b($info)\s*\./) { print $_}
...
}
}
and so on... Anyway, I'm sure that other monks right here would find much better solution than mine :-)
Greetz, Tom.
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