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How did you learn linux?
(lemmygrad.ml)
A Community for all leftists wanting to join and being part of a community that talks about Linux, Unix and the Free Software Community
Back when I was starting tobookstores had basic references from publishers like Reilly's e.g. Unix in a Nutshell. You want something with a good index that you can find guides for the main utilities.
The good old days used a lot of plain text files so utilities like grep, sed and awk could handle most of the processing. Now I think you'd need more complex tools and their libraries to handle the structured text.
Meeh, nothing that nano can't handle IMO. For quick edits (which is more than 90% of what you'd need to do for configuring this or that), it does the job just fine.