The Free On-line Dictionary of Computing (19 January 2023):

eyeball search

    (Or vgrep) To look for something in a mass of code or
   data with one's own native optical sensors, as opposed to
   using some sort of pattern matching software like grep or
   any other automated search tool.

   Compare vdiff, desk check.

   [Jargon File]

   (1997-12-17)


The Jargon File (version 4.4.7, 29 Dec 2003):

eyeball search
 n.,v.

    To look for something in a mass of code or data with one's own native
    optical sensors, as opposed to using some sort of pattern matching software
    like grep or any other automated search tool. Also called a vgrep;
    compare vdiff.

    F