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Nathan Milford
Asked: 2009-05-20 07:23:05 +0800 CST

How does one simulate the old unix grep -S strict functionality in linux

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I am grepping the output of a command and I wish to only return specific, strict results.

I remember some iteration of grep had a strict option -s/--strict.

For example, grep -s bytes would only return entries which mentioned the word "bytes" and not every word that contains bytes, like "megabytes", "kilobytes", etc.

linux centos grep

1 Answers

  1. Best Answer
       -w, --word-regexp
          Select  only those lines containing matches that form whole
          words.  The test is that the matching
          substring must either be at the beginning of the line, or 
          preceded  by  a  non-word  constituent
          character.   Similarly,  it  must be either at the end of the
          line or followed by a non-word con-
          stituent character.  Word-constituent characters are
          letters, digits, and the underscore.
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