Published at LXer:
Awk comes in several varieties: There is the original awk, written in 1977 at AT&T Bell Laboratories, and*several reimplementations, such as mawk, nawk, and the one that ships with most Linux distributions, GNU awk, or gawk. On most Linux distributions, awk and gawk are synonyms referring to GNU awk, and typing either invokes the same awk command. See the GNU awk user's guide for the full history of awk and gawk.read more
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