this post was submitted on 05 Oct 2023
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Linux
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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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The original "ed" text editor, from 1969 Unix. Everyone should spend a few days trying to get some work done with it, if only to appreciate how we have nicer things now.
Another nice thing about ed is that it is sometimes easier to use than sed when you want to edit a file programmatically, since you can navigate lines at random (forward and backward directions), and you can still run regex find/replace like with sed. Just
and pipe the commands into ed, although it is really an esoteric way to write scripts.