Bash Script Needed // Utilizing "nc" Command

I need someone to write a shell script that will utilize the "nc" command to check connectivity of IP addresses to a specified mail server. I need it to be versatile in the respect that it needs to check multiple IP addresses either from the same Class C range or multiple Class C ranges. Here is an example of a scenario: I want to check the connectivity of the following IPs that are binded to the server: [login to view URL] - [login to view URL] [login to view URL] - 1.84.55.12-54 [login to view URL] - [login to view URL] I want to check if the above IPs will connect to the following server: [login to view URL] The command to do the above one by one would be the following: nc -s [login to view URL] 25 -- The problem with checking the IPs one by one is that it will take forever so I need an automated way to do this (hence the shell script). I want the shell script to be versatile and allow input when run so it would do something like the following when run: Please input IP ranges in the following format (X.X.X.X - X.X.X.X): Please enter server you would like to connect to: -- I would then be allowed to input one or several IP ranges. The shell script would then utilize the "nc" command to check all IPs in the ranges I assigned and output the results in real time to the screen and also save the results in a .txt file. -- This should be a simple job for someone who knows how to do this. I am looking to have this completed in one day and please don't bid some outrageous amount. Please message me explaining your knowledge and a personalized message of when you can complete the job (no random automated copy/paste responses please). Thank you!