Question

A Github repo made by “hakluke” collects over 80 ways to perform this action, including a misleadingly-named “simple way” that involves 5 piped commands starting with a “ps”. A Stack Overflow blog post was written to celebrate 1 (15[1])million views on a question by “jclancy” (15[1])about this action, and noted that JQuery and CSS developers were most likely to need help with it. A tweet by “I Am Devloper” says (-5[1])“I’ve been using [a certain program] for 2 years now, mostly because I can’t figure out how to” do this action. (15[1])This action can be performed by pressing (*) escape to enter normal mode, and then typing commands like “colon x” or “colon w q”. For 10 points, name this notoriously difficult action, which you might want to do if you accidentally open the main alternative to Emacs. ■END■ (10[1])

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