You probably want to be using the system command instead of using backticks. Backticks capture the output of the command and return it to the Perl program. The system command, however, goes off and executes the program, returning the exit value to the Perl program. That seems to be what you want for the if condition, where you're checking for a return value of 0 (successful exit). For the ssh command inside the if block, maybe take a look at the exec command. It starts the given command, replacing the running Perl program, which it kind of looks like you want to do. Maybe give us a better idea of what the intended operation of your program is and we can help a bit more.

kelan

Perl6 Grammar Student

In reply to Re: shell execution question by kelan
in thread shell execution question by mojo_the_helper

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.