I was looking for a module that could get the output of a particular command. In my case, I needed the error output. For a quick and easy replacement to system() or using qx() the command:
run \@args, \$in, \$out, \$err or die "Cannot run command because of: $?";
Works wonderfully. Afterwards, you can dig the rest of the documentation to get more control on command output and processes.
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