How do i request two numbers and then add them together in Linux coding?

so i'm new to Linux and i need to know how to have the user request 2 numbers then have it add the first number by the second number.


Also i need to know how to have 5 names print to the screen in alphabetical order and reversed.


Any help you can give me would be awesome.


Thanks guys!!!!How do i request two numbers and then add them together in Linux coding?
';man bash'; (look for the the ';echo'; and ';read'; built-ins)


';man expr';


';man sort';





Good luck with your homework.