sed & awk

Ranked #23 in Unix, Ranked #32 in Linux

sed & awk describes two text processing programs that are mainstays of the UNIX programmer's toolbox.

sed is a "stream editor" for editing streams of text that might be too large to edit as a single file, or that might be generated on the fly as part of a larger data processing step. The most common operation done with sed is substitution, replacing one block of text with another.

awk is a complete programming language. Unlike many conventional languages, awk is "data driven" -- you specify what kind of data you are...


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