grep/grep/ vi. [from the qed/ed editor idiom g/re/p, where re stands for a regular expression, to Globally search for the Regular Expression and Print the lines containing matches to it, via Unix `grep(1)'] To rapidly scan a file or set of files looking for a particular string or pattern (when browsing through a large set of files, one may speak of `grepping around'). By extension, to look for something by pattern. "Grep the bulletin board for the system backup schedule, would you?" See also vgrep.