Good afternoon dear Monks,

I'm attempting to search logs using tail -f so if the specific string got into the log file we should print the first 3 occurrences and continue the rest of the script, but it is not working. The strings passed as a commandline argument.

I appreciate the your valuable input

use warnings;
use strict;

my $currentDate = `date +%Y%m%d`;
my $logPath = "/dhcp/logs"
my $logFile = "{$path}/DHCPD.log.{$currentDate}"
my @tail = qx(tail -f -1 $logFile | grep $_);

if (@tail) {
  print @slice = @tail[0 - 2];
  last;
} 
else {
  print "not found";
}

[download]

In reply to Watch log for string (tail -f) by hmb104

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.