G'day pratikmonu,
Consider using a here-document for that.
You should find the code is a lot cleaner and you'll only need a single print statement.
Here's a rough example based on the code you posted:
#!/usr/bin/env perl
use strict;
use warnings;
my ($file, $string) = qw{$HOME/... Completed...};
print <<"EOF";
#!/bin/sh
FILE="$file"
STRING="$string"
while ... "$file" ... "$string" ...
EOF
Output:
#!/bin/sh
FILE="$HOME/..."
STRING="Completed..."
while ... "$HOME/..." ... "Completed..." ...
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