http://www.perlmonks.org?node_id=999430
mark4444az has asked for the wisdom of the Perl Monks concerning the following question:

Hi, I have a csh file that calls a perl script. The perl script brings in a value that I type in when I run the csh file. I sometimes have to alter that value in the perl script, is there some way to...export that value back to the csh progam that was initially run? If not, is there some way to stop the csh program from within perl? In the perl script the value is brought into the perl file from the csh script like this:
$|=1; $stapl = shift; $serial = shift;