How to Take Linux System Snapshots with Timeshift

There are several backup utilities for Linux and in this guide, we’ll look at Timeshift, a utility which creates snapshot of and restores your Linux system.

Source: How to Take Linux System Snapshots with Timeshift

Writing Safe Shell Scripts

Writing shell scripts leaves a lot of room to make mistakes, in ways that will cause your scripts to break on certain input, or (if some input is untrusted) open up security vulnerabilities. Here are some tips on how to make your shell scripts safer.

Source: Writing Safe Shell Scripts (MIT Student Information Processing Board)