It depends on how the script is being killed. A kill -9 on unix can not be trapped, nor can someone pulling the plug out the wall. That aside you can set a signal handler, here is an example that traps the Ctrl-C by setting the $SIG{INT} handler to a subroutine reference. It also has an END block just for fun (any cleanup you do in normal termination could be here and it will get run after the sig handler) 

$ perl -le'$SIG{INT}=sub{print "cleanup"};sleep 100;END{print "goodbye
+"}'
# here I hit Ctrl-C
cleanup
goodbye
$

[download]

Cheers,
R.

Pereant, qui ante nos nostra dixerunt!

In reply to Re: Perl action on cancellation by Random_Walk
in thread Perl action on cancellation by Win

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