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Re:Problem solving with Unix commands by JdeBP on Thursday February 14, 2019 @08:08AM (#19161560)
For actual text processing, I recommend a book.

* https://oreilly.com/openbook/utp/

Re:Problem solving with Unix commands by SomethingOrNot on Thursday February 14, 2019 @08:13AM (#19161582)
Seems like a book specifically about text processing for the purpose of writing/formatting/typesetting documents.