It's a long weekend, a good time to play in the garden, ride bicycles up and down hills, and watch some `bash` videos. Dave at YSAP discusses "shebang" lines and does his deep-dive into them. Shebang lines are those lines at the top of a script that bash processes, right? Wrong. Bash ignores that line, it's the kernel that processes the shebang. Node / v8 also are smart enough to ignore the shebang line, even though lines starting with # in JS are *not* comments. Cool! He compares behaviours on Darwin, Void Linux, and IllumOS / SunOS. Differences show up when passing options in shebang lines. Lots of interesting tricks can be had by tweaking that line, and after some 10 minutes of general explanation, he heads down the rabbit hole starting with his favourite distro, Void Linux.

https://www.youtube.com/watch?v=aoHMiCzqCNw

TL;DR: use: #!/usr/bin/env bash (or, since I'm a new convert) #!/usr/bin/env fish