How can I run an external command and capture its output in Perl?

Posted by gameover on Stack Overflow See other posts from Stack Overflow or by gameover
Published on 2010-03-17T10:34:09Z Indexed on 2010/03/17 14:31 UTC
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I'm new to Perl and want to know of a way to run an external command (call it prg) in the following scenarios:

  1. Run prg, get its stdout only.
  2. Run prg, get its stderr only.
  3. Run prg, get its stdout and stderr, separately.

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