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Summing Up
Given that text is so central to the character of Unix-like operating systems, it makes sense that there would be many tools that are used to manipulate and format text. As we have seen, there are! The simple formatting tools like fmt and pr will find many uses in scripts that produce short documents, while groff (and friends) can be used to write books. We may never write a technical paper using command line tools (though there are many people who do!), but it’s good to know that we could.