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Installation steps
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vim nagios-time-converter.pl
Paste the following codes and save the file
#!/usr/bin/perl
# ------------------------------------------------------------
# nagios-time-converter.pl
# ------------
# by:- Eranga Perera
# a perl script to convert Nagios "epoch time" (epoch seconds)
# into a human-readable format.
# ------------------------------------------------------------
$num_args = $#ARGV + 1;
die "Usage: this-program epochtime (something like '1279236316')" if
($num_args != 1);
$epoch_time = $ARGV[0];
($sec,$min,$hour,$day,$month,$year) = localtime($epoch_time);
# correct the date and month
$year = 1900 + $year;
$month++;
printf "%02d/%02d/%02d %02d:%02d:%02d\n", $year, $month, $day, $hour, $min, $sec;
chmod 755 nagios-time-converter.pl
Usage
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./nagios-time-converter.pl 1279236316
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