Safer bash scripts with 'set -euxo pipefail' (Example)

Preface: This article was originally posted here on my personal blog. Often times developers go about writing bash scripts the same as writing code in a higher-level language. This is a big mistake as higher-level languages offer safeguards that are not present in bash scripts by default. For example, a Ruby script will throw an error when trying to read from an uninitialized variable, whereas a b