Find a command line flag avoids having to type into the process. That "or die" you placed is unreachable code I think. It has to be outside of the
system. 0 is success for command line programs usually. If true, its an exit code, and its an error exit code. On some OSes the exit code needs to be converted to be readable to typical C lib exit codes.
It is much more complicated to type into a process. Really really try and find a way around , look up what "-q" does and try it. If you must type into a command line program, you need
IPC::Open3.
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