However, you can easily create a shell script that contains a file — even an archive of many files — and then retrieve the file and act on it at run time.

The second line of the above set of codes shows the response from the script. These were some simple shell scripts. You can write advanced scripts containing loops, functions, and conditional ...

In a real scenario, this could be anything like downloading files, creating backup, validating user input, etc. Also, to give an example we are assuming only four steps in our script below which is ...

The shell is your friend. But many developers don’t really know the shell, the Unix or Linux command-line environment available in several operating systems.

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.