Contents|Index|Previous|Next Interactive Merging with sdiff With sdiff, you can merge two files interactively based on a side-by-side format comparison with '-y' (see Showing Differences Side by Side). Use '-o file' or'--output=file' to specify where to put the merged text. See Invoking sdiff for more details on the options to sdiff. Another way to merge files interactively is to use the Emacs Lisp package, emerge. See "Merging Files with Emerge" in The GNU Emacs Manual for more information.