Wikipedia:Mass editing

Mass editing is editing that occurs when a single editor makes the same change to a large number of articles, typically employing the assistance of a tool such as the AutoWikiBrowser. Although mass editing can be carried out by a bot, it is also possible (and sometimes necessary) for such edits to be carried out manually, so that the editor can see the pages being edited and make a judgment call as to whether a particular page should be skipped or edited differently from others in the group. For example, an editor may generate a list of articles containing a common misspelling or typographical error, but may find that in some instances the misspelling or other error is intentional because it is contained in a quote or as part of a URL or filename, and therefore should not be changed.

Some kinds of mass edits are presumptively correct to undertake. For example, when a title with a large number of incoming links is made into a disambiguation page, editors commonly use mass editing tools to correct the incoming links, although they must be careful that in each instance they choose the right disambiguation target.