Hey Monks,

I'm in a bit of a crunch. I'm running a tool and redirecting the output from it to a file. That is working fine, but I'm having problems trying to read from that file. I tried closing it and then reopening it again as stated in perlfunc open
Though if you try to re-open "STDOUT" or "STDERR" as an "in memory" file, you have to close it first: close STDOUT; open STDOUT, '>', \$variable or die "Can't open STDOUT: $!";
but that isn't working for me. Could someone please explain what I'm doing wrong. Thanks.

use strict; use warnings; my $cmd = 'd:\clwhois.exe'; my $ip = '192.168.1.1'; my $file = 'd:\temp\output.txt'; open(STDOUT, ">$file") or die "Can't open $file: $!\n"; # redirect STD +OUT to a temp file system ("$cmd $ip") and warn "Can not execute $cmd: $!\n"; close STDOUT; open(STDOUT, "$file") or die "Can't open $file: $!\n"; while (<STDOUT>){ print; } close STDOUT;

In reply to Reading from STDOUT after Redirecting it. by Dru

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.