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-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 constituent character. Word-constituent characters are letters, digits, and the
underscore. This option has no effect if -x is also specified.
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'Grep' #1
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grep -w "the"-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 constituent character. Word-constituent characters are letters, digits, and the underscore. This option has no effect if -x is also specified.