The GNU versions of commonly used grep utilities. Grep searches through textual input for lines which contain a match to a specified pattern and then prints the matching lines. GNU's grep utilities include grep, egrep and fgrep. Note that this port will install these utilities with a 'g' prefix, e.g. ggrep, but the documentation will refer to them without the 'g' prefix.
WWW: https://www.gnu.org/software/grep/grep.html
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