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Do you use vim?
(sh.itjust.works)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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I've been in a situation where I could do nothing but use vi until I installed vim. Then could only use vim or vi. I've also had to use GVimPortable on Windows because of shitty corporate computers don't have bash or vim (or didn't back in the day.)
It's not hard. Just grab a cheat sheet. There is an Android app cheat sheet for Linux commands with Vim. You'll be fine.