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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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Why isn't it recommended to change the SIGINT shortcut from Ctrl+C to something like Ctrl+SHIFT+C? (lemy.lol)

submitted 6 months ago by matcha_addict@lemy.lol to c/linux@lemmy.ml

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I read a lot of answers online that its a bad idea, but the arguments did not make a lot of sense. "it's a heavily ingrained part of the eco system". Well if I can change it, what's the deal?

It makes more sense to make an interrupt signal be the harder shortcut, and copy to be ctrl+C, matching other programs and platforms.

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[–] Kanedias@lemmy.ml 1 points 6 months ago* (last edited 6 months ago)

He means that ASCII table has an actual character that represents end-of-text and that terminals respond to with SIGINT, and it is ETX character, 0x03.

The Control modifier on your keyboard basically clears the top three bits of whatever ASCII character you type, leaving the bottom five and mapping it to the 0..31 range. Ctrl+C sends 0x03, which is exactly ETX.

Look at the ASCII table for a clue, this is why it was a convenient thing to do.