#!/usr/bin/perl use warnings; use strict; open (FD,">>text.txt"); my $flag = 0; foreach my $num (0 .. 10) { if ($flag == 1) { print FD $/,$num; } if ($flag ==0) { print FD $num; $flag = 1; } } #### Its old text 0 1 2 3 4 5 6 7 8 9 10