"People like to pretend that learning shell commands is somehow better because it's more portable, but unless your work entails working across multiple machines and environments daily, it doesn't matter."

It is more portable. No pretending is necessary. It's true. I run multiple computers with different resource constraints and operating systems. I neither have the patience nor the time (not to mention the system requirements) to install an IDE on all of them. However each one has an OS that comes with a POSIX-like shell, e.g., NetBSD's sh, FreeBSD's sh, OpenBSD's sh and Linux's sh, which is derived from NetBSD's sh.

The author of this blog post begins his demonstration of shell wizardry with the "history" command. This command does not exist in POSIX sh. On NetBSD I use "fc -l 0". Go figure, it is more portable (nevermind fewer keystrokes). The scripts I write in NetBSD sh run on FreeBSD, OpenBSD, Linux, and a number of other OS without any modification. I do not have learn multiple shells to do work. On BSD, I also use the POSIX-like scripting shell (sh) as the interactive shell.

The best part is I do not have to install anything, it has already been included, no worries about system requirements. All these OS require a POSIX-like sh. None of them require an IDE.