Strong v-hull shaped boat used for maneuvering ships into and out of port and to carry supplies. A ship is too powerful to pull up to the wharf on its own. It cuts power and lets the tug nudge it in. Generally barges are pushed by towboats, not tugs.
TUGboat (ISSN 0896-3207) is a journal published three times per year by the Te X Users Group. It covers a wide range of topics in digital typography relevant to the Te X typesetting system. The editor is Barbara Beeton.