Almquist shell
| Almquist shell | |
|---|---|
| Developer(s) | Kenneth Almquist | 
| Initial release | May 30, 1989 | 
| Written in | C | 
| Operating system | Unix-like | 
| Platform | Cross-platform | 
| Type | Unix shell | 
| Website | www | 
Almquist shell (also known as A Shell, ash and sh) is a lightweight Unix shell originally written by Kenneth Almquist in the late 1980s. Initially a clone of the System V.4 variant of the Bourne shell, it replaced the original Bourne shell in the BSD versions of Unix released in the early 1990s.