This directory contains applications written specifically for particular versions of Unix. You will find sources to many contributed applications in the various 2BSD distributions in the archive. Note that many of these will be difficult to back-port to earlier versions of Unix (e.g 6th & 7th Edition). Other places to look for Unix software are the on-line archives of the comp.sources.unix USENET newsgroup. One such archive is at https://www.tuhs.org/Usenet/comp.sources.unix There are also some 3rd party applications for 4.3BSD at https://www.tuhs.org/Uucp/43BSD_Apps