Opensource.com - https://opensource.com/article/18/3/creating-bash-completion-script
I recently worked on creating a Bash completion script for a project, and I enjoyed it very much. In this post, I will try to familiarize you with the process of creating a Bash completion script.
What is Bash completion?
Bash completion is a functionality through which Bash helps users type their commands more quickly and easily. It does this by presenting possible options when users press the Tab key while typing a command.