20TEXT PROCESSING
All Unix-like operating systems rely heavily on text files for data storage. So it makes sense that there are many tools for manipulating text. In this chapter, we will look at programs that are used to “slice and dice” text. In the next chapter, we will look at more text processing, focusing on programs that are used to format text for printing and other kinds of human consumption.
This chapter will revisit some old friends and introduce us to some new ones:
cat Concatenate files and print on the standard output
sort Sort lines of text files
uniq Report or omit repeated lines
cut Remove sections from each line of files
paste ...
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