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Whenever you use system commands, you will want to make sure you check the exit status. Additionally, the error is stored in $!, and should give you an idea of why things are failing. Try something like this:
open(OUT,">outfile") || die; for($i=0;$i<=$#bigfile;$i++){ $bigfile[$i] =~ s/\0/ /g; print OUT "$bigfile[$i]"; } close(OUT); print "Compressing original file\n"; system("compress original.file") and die "Unable to compress data: $!\n"; print "Concatenating other data\n"; system("cat ./incoming/data.file ./static/data.file >> outfile") and die "Unable to cat data: $!\n"; print "Sorting Data File\n"; system("asort outfile 1 6 8 9") and die "Unable to sort data: $!\n"; print "Done.\n";
You may also want to use system in a list context, as it is faster and more secure, for example:
system("/path/to/asort","outfile","","1 6 8 9") and die "Unable to sort data: $!\n";
Lastly, your for loop isn't very perlish. You may want to try something like this:
open(OUT,">outfile") || die "Unable to open outfile: $!\n"; foreach (@bigfile) { s/\0/ /g; print OUT "$_"; } close(OUT);


Update: As runrig pointed out via the chatterbox, it ought to be and die after a system, since system returns 0 on success.

Update2: See merlyn's post RE: Re: large file issue?. $! is actually not what you want to look at.

In reply to Re: large file issue? by Shendal
in thread large file issue? by clearcache

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