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A comment on look(1): lines beginning with given string. Parent comment

Re:look(1): lines beginning with given string by DiabloD3 on Saturday December 12, 2015 @11:04PM (#10725387)
As long as I have been using *nixes, I have never met a machine that didn't have grep. It was written by Ken Thompson himself in 1974, or 41 years ago, and first came out in Unix 4th edition.
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Re:look(1): lines beginning with given string by userbinator on Sunday December 13, 2015 @01:36AM (#10725607)
grep is also specified by POSIX, whereas look isn't.
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