The Bourne shell is a historical implementation of /bin/sh
The Bourne shell was the implementation of /bin/sh on Unix systems for a long time, from Version 7 Unix in 1977 to the the early 2000s. It was the starting point for the POSIX shell standard, which builds on the Bourne shell adds a few features, mostly from ksh. It has now mostly been phased out in favor of other implementations that follow the POSIX standard, such as ksh ksh, bash bash and various flavors of ash (e.g. dash. The Bourne shell is not free software and thus is not available on Linux or BSD.
Use this tag only for questions about genuine Bourne shells. For questions about Bourne/POSIX-style shells in general, use shell.
