I have not personally used Net::SSH2:Channel, and the cpan documentation does not make it clear what the flag means for blocking. I would assume that 1 means blocking, but are you sure? You are not checking the results of any of the methods after the connect. However, if the auth was failing, I'm pretty sure the channel would return undef, so your first use of it would fail in an obvious way.

Your example program is not displaying $len, so I'm assuming that in some previous incarnation, you printed it out. If you did not, and are going by the print statement for $output, then the read method could have failed.

Have you compared the ssh2 library versions for the 2 remote systems? I would make sure I was using the same lib version on both before I checked anything else.

fnord

In reply to Re: Net::SSH2::Channel with exec, reads 0 bytes on suse while works fine on ubuntu by Illuminatus
in thread Net::SSH2::Channel with exec, reads 0 bytes on suse while works fine on ubuntu by madhurikl

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.