[SOLVED] How can I make a "bat" file? (or w/e the BodHi version of that is?

What do you call it when you make a bat file in linux.. as in make a simple command that runs a series of commands.

Basically I would like to make a file that simply runs a series of commands one after the other and takes a variable.

Code:mycommand thisisatestfor example that runs from the terminal, and can run from anywhere like the other terminal commands,