96
~~Most~~ many file types are just a renamed .zip
(lemmy.blahaj.zone)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
For shell scripts it's because bash isn't the only shell; if you leave out the shebang line, Ubuntu will run your script in Dash instead