Thanks. You're right. I want to send the filename to the subprocess process_tar.pl. 

#!/usr/bin/perl

print "\n" . $ARGV[0];
sleep 40;

[download]

Then after launching this, I want the parent script to carry on running and launch 5 more process_tar.pl's, then wait until one or more of these have finished before running any more.

So you're saying use fork for this?

In reply to Re^2: wrong pid by js1
in thread wrong pid by js1

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