It's not hard to create and run a shell script in Linux distros like Ubuntu, but there are a few non-obvious pitfalls you need to avoid. Here's a quick example of how to execute a script in Linux.

Bash scripting is every Linux administrator's Swiss Army knife. Learn how using a for-loop in conjunction with Bash scripts can produce powerful results.

To get a list of the bash builtins, just type “help” when you’re on the bash command line. For more about built-ins, refer to “ How to tell if you’re using a bash builtin ”.