So I have copied this answer into probably 100 separate bash scripts over the years: https://stackoverflow.com/a/246128/9084915 https://stackoverflow.com/a/246

So I have copied this answer into probably 100 separate bash scripts over the years: https://stackoverflow.com/a/246128/9084915 https://stackoverflow.com/a/246128/9084915 I've thought about saving it somewhere (sometimes I copy from my other existing scripts) - but it's just too convenient to google/copy directly out of the webpage.