FAQ 8.2 How come exec() doesn't return?

Discussion in 'Perl Misc' started by PerlFAQ Server, Feb 3, 2011.

  1. This is an excerpt from the latest version perlfaq8.pod, which
    comes with the standard Perl distribution. These postings aim to
    reduce the number of repeated questions as well as allow the community
    to review and update the answers. The latest version of the complete
    perlfaq is at http://faq.perl.org .

    --------------------------------------------------------------------

    8.2: How come exec() doesn't return?

    (contributed by brian d foy)

    The "exec" function's job is to turn your process into another command
    and never to return. If that's not what you want to do, don't use
    "exec". :)

    If you want to run an external command and still keep your Perl process
    going, look at a piped "open", "fork", or "system".



    --------------------------------------------------------------------

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    corrections. The perlfaq-workers also don't have access to every
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    PerlFAQ Server, Feb 3, 2011
    #1
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    FAQ 8.2 How come exec() doesn't return?

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