Accurate Output as described by the uploaded document
Very very Important things to note that the Perl Program is tested on LINUX based platform. Its LINUX.
net_usage_file can be anything with the .txt or normal Linux file. Can be blank and if so it print the one with examples output. I am just uploading two sample file though from notepad but same kind of file gonna be tested in Linux.
It will invoked with any of this -n or -r or -t or -p options followed by file name. So Please make sure everything work correctly according to the specified output described in "perl" documents.