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Computing (FOLDOC) dictionary
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An extended version of the Unix command grep. Egrep
accepts extended regular expressions (RE) including "*"
following multi-character REs; "+" (one or more matches); "?"
(zero or one matches); "|" separating two REs matches either.
REs may be bracketed with (). Despite its additional
complexity, egrep is usually faster that fgrep or grep.
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  • Words contain "egrep" in its definition in Computing (FOLDOC) dictionary: 
    egrep TLAs tee grep
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