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21 – Formatting Output‌

In this chapter, we continue our look at text-related tools, focusing on programs that are used to format text output, rather than changing the text itself. These tools are often used to prepare text for eventual printing, a subject that we will cover in the next chapter. The programs that we will cover in this chapter include:

nl – Number lines

fold – Wrap each line to a specified length

fmt – A simple text formatter

pr – Prepare text for printing

printf – Format and print data

groff – A document formatting system


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