I did find some more hints here, I modified them slightly. This one finds a single file older than 20 minutes and prints a message to stdout: 
#!/bin/perl -w
use strict;
my $mytime=(time);
my ($File,$FileStat,$CallOutDir);
chdir 'C:/devl/bin' or die "Arghh!!! $!";
opendir(ROOT, ".") or die "Arghh!!! $!";
foreach $File (readdir(ROOT)) {
    next if $File=~/^\./;
    if ($FileStat = (stat $File)[9]){
        if ($FileStat <= ($mytime - 1200)) {
        print "File older than 20min found. The file name is $File";
        #send mail here....
        last;
        }
    }
}

[download]
I'd like it to list all files older than nnn minutes, and I will have to figure out how to make this spit out a file rather than a msg. to stdout.

In reply to Re: script for scanning folder and sending a warning if a file within it is older than 5 minutes by dkaplowitz
in thread script for scanning folder and sending a warning if a file within it is older than 5 minutes by dkaplowitz

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.