I have been attempting to capture the transfer speed and/or time from an scp transfer without any luck.

I have tried this: $scp_output = `/usr/bin/scp test_file.tar.gz usr@host:test_file.tar.gz`

But $scp_output remains empty. I have also tried piping the scp output into the perl script's stdin, but again without success.

# scp test_file.tar.gz usr@host:test_file.tar.gz | scp_capture.pl #!/usr/bin/perl while ($line = <STDIN>) { print $line; }

I even tried redirecting the output of scp to a file, so I could later read it into the script.
scp test_file.tar.gz usr@host:test_file.tar.gz > scp_output.txt

My guess is that my troubles are with the way scp generates its output to dynamically update the transfer speed/time. Is there any way I can capture this info?

Example scp output: test_file.tar.gz 100% 3884KB  3.8MB/s   00:00


In reply to capture scp output by tomfoolry

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.