Linux

48372 readers

2209 users here now

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.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

[email protected]

442

I made a plain text Linux cheat sheet as a reference and for beginners. (cerium.cc)

submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/[email protected]

48 comments fedilink hide all child comments

If you have any suggestions or criticisms, feel free to comment them.

Being plain text, it's much easier to read on a wide screen, or on something without line wrapping.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 7 points 9 months ago* (last edited 9 months ago) (1 children)

I don't know how this would be useful to someone reading the cheat sheet, but here's something interesting I just indirectly found out while skimming it through:

Ctrl+D does the same thing as ENTER, except the latter additionally sends the end-of-line character to the reader while the former sends nothing;
as is the case for shells or interactive programs like the Python REPL, Ctrl+D causes them to terminate only because it sends a string that is 0 characters long, and 0-size reads are universally interpreted as files reaching the end.

To test this: enter cat, type "hello" without pressing enter, then Ctrl+D: you should see "hellohello".
An extremely rare case of this being useful would be using netcat to send a string somewhere, without sending the end-of-line byte at the end.

[–] [email protected] 5 points 9 months ago

I updated "Log out" to "Exit (sends a signal indicating the end of a text stream)". Which I think is a lot more accurate, and still easy to understand.