It has been over a year since i last delt with system call return values, but if my memory server me correct, you need to right shift the status return. When i last coded this, i wrote a forking server that retrieved exit codes via the $? variable: 

my $status = $? >> 8;

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Using a little one liner, we can quickly see what 256 >> 8 is: 
perl -le'print 256 >> 8'

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Which yields 1 -- looks to me as if your invoked program is indeed returning a non zero return code. Are you also capturing STDERR?

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to Re: Problem in System function by jeffa
in thread Problem in System function by rakesh1377

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