Simply put, a Shell Script is a program that is run by a UNIX/Linux shell. It is a file that contains a series of commands which are executed sequentially as if they were entered on the command line ...

Many Linux-based machines run Bash as their standard scripting engine, but some distributions, like Alpine and Debian, don't. Testing your script with other shells can help with portability.

Here are some steps you can take to ensure that your bash scripts work as intended and are easy to update.

It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t pres… ...