I am processing a tree of files and I want to keep track of what file I have processed. So what I do is when I process a file I write the name of the file into a log. The log is a straight text file with the full names of the files. ie test1.txt The program comes back with file not found. 
use List::Util qw(first);

open (LOG, ">>$LogFileName")||die("Can not open Log file\n");

my ($FileProcessed) = first{$_ eq $FileName}<LOG>;

close(LOG);

if ($FileProcessed){
  print("$FileName Found in Log file\n");
}else{
  print("$FileName NOT Found in Log file\n");
}

[download]
Thanks JGatrell42

In reply to Find a filename in a text file by jgatrell42

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.