Links rot. It’s unfortunate, but it’s just a part of the web. Content disappears and links rot; if you don’t host your own images, then you can’t guarantee that your images will always appear. In this situation, alt-text can be the difference between your piece still making sense and it being completely useless. This is because many browsers show the alt-text with the missing image icon, so descriptive alt-text can make sure your audience still gets the necessary information.

If the alt-text doesn’t load for you, try viewing this article on my site.

Examples

I’ve noticed quite a few shell scripts recently that claim to be POSIX-compliant despite using mktemp, so I wanted to go over a compliant alternative and a few things you should know about writing POSIX shell (#!/bin/sh) scripts.

Problems