hi,

any idea how to change the time format from below data on 3rd & 4th column into milisecond (epoch), bcoz currently Datetime package is not installed in my machine.

source
ALL30    2191967708    201211020915    201303020923
[download]

expected result 
ALL30    2191967708    1351822500000 1362190980000
[download]

#!/usr/bin/perl
use strict;
use warnings;

use DateTime;
use DateTime::Format::Strptime;

my $file = $ARGV[0] or die "Need to get CSV file on the command line\n
+";
my $outfile  = "output_date.txt";

my $sum = 0;
open(my $data, '<', $file) or die "Could not open '$file' $!\n";
open (OUTFILE, "> $outfile") || die "ERROR: opening $outfile\n";

 
while (my $line = <$data>) {
  chomp $line;
  
  my @fields = split "\t" , $line, -1;;
        my $formatter= new DateTime::Format::Strptime(pattern => '%Y%m
+%d%T');
        

          my $sum1 = "$formatter->parse_datetime($fields[2])";
        my $sum2 =  "$formatter->parse_datetime($fields[3])";
            $fields[2] = "$sum1";
        $fields[3] = "$sum2";
        # $line= print join( "\t", @fields ) . "\n" ;
        print OUTFILE "@fields\n";
}
close ($data);
close (OUTFILE);
[download]

thanks