Show us a code sample that we can run and that doesn't need anything outside the sample script. You may find Re^3: loop through file checking for session variable provides a useful starting point.

Use strictures (use strict; use warnings;).

if($Session->{'usrSystem'})=~/$line/g;

is not syntacticly correct. If it is intended as a statement modifier it needs a statement before the if. If it is an if it needs a block and the expression must be in parenthesis.

Use the three parameter open:

my $site_file = 'c:\sitefile.txt'; open my $Data, '<', $site_file or die "Horrible death";

Perl is environmentally friendly - it saves trees

In reply to Re: problem with a regex loop by GrandFather
in thread problem with a regex loop by grashoper

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.