grep

grep /grep/ vt.  [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}.