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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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Linux Terminal: CTRL+D is like pressing ENTER (hackarcana.com)

submitted 1 day ago by tuna@discuss.tchncs.de to c/linux@lemmy.ml

13 comments fedilink hide all child comments

Honestly I had no idea what ctrl+d even did, I just knew it was a convenient way for me to close all the REPL programs I use. The fact that it is similar to pressing enter really surprised me, so I wanted to share this knowledge with you :)

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[–] mina86@lemmy.wtf 15 points 19 hours ago* (last edited 19 hours ago) (1 children)

It’s not. You keep insisting that ^D doesn’t send EOF and yet:

$ stty -a | grep eof
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>;
$ man stty |grep -A1 eof |head -n2
       eof CHAR
              CHAR will send an end of file (terminate the input)

^D is the EOF character. The thing is that in C every line of a text file must be terminated by a new-line. And so, when you end a file with ^D without a return, you get funky results.

[–] Ferk@lemmy.ml 5 points 17 hours ago

To be more precise, it's the "EOT" (end of transmission) control character, the 4th symbol in ASCII, from the non-printable character area.