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.

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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.