Remove every bashism

[nnyyxxxx]

Type of Change

• [x] New feature
• [x] Bug fix
• [x] Refactoring
• [x] Hotfix

Description

I replaced every bashism with posix alternatives, I removed the custom color codes that were in almost every file (utilities), I refactored a lot of stuff (utilities), and I made it rely on the common script color codes instead of the custom ones (utilities).

Testing

Tested on bash, zsh, and dash.

Rechecked every file using checkbashisms package

Impact

Greatly impacts the changed sections.

Issue related to PR

• Resolves #246
• Resolves #147
• Resolves #312
• Resolves #232
• Resolves #383
• Resolves #350
• Closes #278

Checklist

• [x] My code adheres to the coding and style guidelines of the project.
• [x] I have performed a self-review of my own code.
• [x] My changes generate no errors/warnings/merge conflicts.

[ghost]

https://mywiki.wooledge.org/Bashism

Here is the site I used to squeeze out these bashisms. Might be helpful to Chris in future development.

[ghost]

Just squeezed out the last bashisms out of dwm-titus. Ready for review / merge.

[ChrisTitusTech]

Sorry for the inconvenience. We had a massive restructure of the codebase to improve future development. Because of this can you update your PR to the new structure. Thank you for your assistance and contribution.

[ghost]

Finished.

[jeevithakannan2]

@nnyyxxxx Please include this issue also https://github.com/ChrisTitusTech/linutil/issues/383

[ghost]

@nnyyxxxx Please include this issue also #383

Thanks.

[ChrisTitusTech]

Thanks so much looks awesome @nnyyxxxx