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Calling Perl's in-built system() function is easy, determining if it
was successful is hard. Let's face it, $? isn't the nicest variable
in the world to play with, and even if you do check it, producing a
well-formatted error string takes a lot of work.
IPC::System::Simple takes the hard work out of calling external
commands.
WWW: http://search.cpan.org/dist/IPC-System-Simple/
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