in reply to Strange behaviour with SSH command launched with open
If you have a look at the help for system it says :-
If you'd like to manually inspect "system"'s failure, you can check all possible failure modes 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; }
Which will give you 'child exited with value 255', so ssh failed returning -1, therefore check your ssh setup.
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