vimdiff for my code reviews, since it, unlike tkdiff can be run without worrying what my DISPLAY variable is set as. (Important for working with screen over ssh. Though there are workarounds.)vimdiff automatically folds lines that have no changes in them. This is very convenient. The command to unfold and show the text is,zowhich stands for “fold open” (if you believe that “z” stands for “fold”). To re-do the fold, and hide the unaffected lines, use “fold close:”
zcThese are typed from command mode and are not
ex commands (so no :).