Bash Shell Scripting- Installing multiple packages with for loop and command line arguments

This tutorial covers the process of installing multiple packages using shell scripts. It explains how to implement a shell script with conditional logic and error handling, including the use of exit codes. The tutorial also demonstrates the use of for loops to automate the installation of multiple packages and how to handle command line arguments effectively.

What is the purpose of the shebang line in the shell script?

What happens if a package is already installed when the script is run?

How can the script be modified to install multiple packages at once?

Describe the error handling mechanism in the shell script.