His Grepship is a visual grep tool that searches text/HTML files for search expressions and displays matching lines, with the expressions highlighted. It can do a find-and-replace on all text/HTML files. The user may elect to confirm/reject each replacement, and may also roll back all changes afterwards. His Grepship comes with a built-in editor. The user may double click an output line, and the editor will open the file, locate the relevant line and highlight the search expression that the user clicked. Optionally His Grepship can be associated with certain 3rd party editors to achieve the same effect (currently these editors are WinEdit, Vim, Lemmy, and MKS vi. More editors will be added in the future).