The Linux command line is a text interface to your computer. Also known as shell, terminal, console, command prompts and many others, is a computer program intended to interpret commands. Allows users ...

This is a pretty classic way to parse and process command-line arguments, actually. Check the value of $1, and if it's a known flag, change a default variable or two, then use the shift command to ...

$ !? SHELL /bin/bash # More usefully, you can interactively search the command history at the console by hitting CTRL-R at the prompt and typing the section of the string you are looking for.

Knowing how to work with and display exit codes on the Linux command line or in scripts can help make errors more obvious.

Sure That Works on Linux, But… Python, of course, runs on many different platforms. So why is this part of Linux Fu? Because you can easily use it to launch any command line program.