Operating System

Crash courses and sparks for everyday computer users, operating system enthusiasts, and beginners on modern operating systems with easy to follow procedural lessons and insights.


Are you pressing the up arrow key or doing history|grep in a Linux terminal to get that long command you typed last week? Don’t do that. Use Ctrl + R to do a reverse search and it will show the matching command with an autocomplete. It’s efficient. You can also cycle through the search results by pressing Ctrl + R again.