this post was submitted on 14 Dec 2023
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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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As of bash 4.3, (which came out nearly 10 years ago) it's possible to get readline to set a variable to do that: https://git.savannah.gnu.org/cgit/bash.git/tree/CHANGES?h=bash-4.3#n832
I've haven't used bash in a long time, but there are many questions/answers on stackoverflow that provide hints as to implementing an indicator like that. One zsh's 'zle' (line editor) it's a matter of setting an environment variable inside a custom prompt; so the bash approach should be similar.
awesome! thanks the tip!