Given the following scenario:

A Perl script calls an external program. The external program may or may not require input from the user, and output from the external program must appear on the user's terminal as it is emitted.

Normally I would use system() to do this sort of thing, but I would now like to additionally capture the STDOUT and STDERR of the external program in separate scalars within the Perl script.

The module IPC::Run seems to fit this need perfectly, but I'm not sure about the syntax, whether to use ptys or just plain filehandles, etc. I didn't see anything that quite fits my requirements in the documentation for this module. Maybe I missed something...

Searching the newsgroups and this site have yielded nothing either. Any tips?

In reply to Use of IPC::Run rather than system() by gmarler

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.