Expect supports your decision making much more smoothly than telnet.

From a purpose point of view, telnet is not made to matching output for you, although Perl's telnet module does cover this a little bit, for example waitfor(), but very basic. From the perception of the author of telnet module, that is not what he should focus on, and spent time on. So even in the future, you don't expect the module to extend on this.

Expect is made for the purpose of making decisions base on output.

Also it makes sense to unplug the underneath communication stuff from your decision making process. Expect does not require telnet, in fact the output can come from any program. In case the source of your output is changed (the data under analysis is now coming from a different source), the majority of your script would still be useful, if it is based on Expect.

In reply to Re: Perl's Telnet vs. Expect Module by pg
in thread Perl's Telnet vs. Expect Module by TASdvlper

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.