OTel gives you seven metric types, and picking the wrong one costs you. A practical breakdown of Counters, Gauges, Histograms, and the rest, with a short intro on how the whole system fits together.
Posts for: #reference
Making sense of "set", the powerful Bash built-in
A field guide to the many flags and options behind `set`, with a reference table and the combinations you'll actually use in real shell scripts.