in reply to Obtaining a return code
From perldoc -f system:
You can check all the failure possibilities by inspecting $? like this: if ($? == -1) { print "failed to execute: $!\n"; } elsif ($? & 127) { printf "child died with signal %d, %s coredump\n", ($? & 127), ($? & 128) ? 'with' : 'without'; } else { printf "child exited with value %d\n", $? >> 8; }
See also: $?
andPOSIX system
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Seekers of Perl Wisdom