Enhancement: Review redundant code between bash modules

[IGLOU-EU]

I would like to review the project, to avoid redundant code and turn it into functions. This would smooth the code and make it more readable.
What do you think about @ethancedwards8 ?

If you're not having time to review for a long time, that's okay for me.

[ethancedwards8]

That's fine. Thank you for the contribution. I'll review it :)