出典:Wikipedia
出典:『Wikipedia』 (2010/11/08 10:53 UTC 版)
The PWB shell (also known as the Mashey shell) was an early Unix shell distributed with some versions of Programmer's Workbench UNIX circa 1975-1977. It was a modified (and generally constrained to be upward-compatible) version of the Thompson shell with additional features to increase usability for programming, and was maintained by John Mashey and various others (Dick Haight, Alan Glasser).