Shell Programming
Shell is a powerful Command Line Interface (CLI) in Linux. We type commands, and shell executes them in a beautiful and sophisticated way. Shell is also a super flexible programing language for Linux. It could bind commands together with conditions, loops and various expansions ($,~). Shell is actually a raw interpreting programming language. Raw interpreting means there is no compiled middle bytecode. In this post, I use bash, which is the most popular and widely deployed shell implementation. ...