use strict;

use warnings;

 

my $source ="temp.txt";

my $num = 1;

my $line = 10;

$line||=1;

 

open(FH,"<$source") or die "Can't open '$source' $!";

 

while ( my $lines = <FH>) {

            my $outfile=sprintf("Int_%s.txt",$num);  ## Open the file once every iteration

 

            open OUT, ">$outfile";

            my $header = sprintf("%-1s%-12s%-8s%-4s%-4s%-10s%-33s","H",$outfile,"20101221","1230","$num","$line"," ");

 

            print OUT $header ."\n"; ## Prints the header here

 

            ### Print the contents of the file here, the header is printed above and trailer is printed below. ####

            print OUT $lines  ;

 

            my $trailer = sprintf("%-1s%-12s%-8s%-4s%-4s%-10s%-33s","T",$outfile,"20101221","1230","$num","$line"," ");

            print OUT  $trailer ."\n"; ## Prints the trailer here

 

           $num++ if ($. % $line eq '0');

 

            close (OUT);   ## Close the file in the same iteration, so that a new file is opened next iteration

 

}