use strict;
use warnings;

use Path::Tiny qw(path);
my $filenme='d:\SampleCicoIOSEvent.txt';
my $file=path($filenme);
my $data= $file->slurp_utf8;
use File::Slurp;
my $filename='e:\filename.txt';
my $IPfilename='e:\IPfilename.txt';
my @arr = read_file($filename);
my @arr1 = read_file($IPfilename);
my @output= map{ $data=~s/C_USERNAME/$_/rg} @arr;
my @output1= map{ $data=~s/IP/$_/rg} @arr1;
print @output;
print @output1;