What Does C Shell (csh) Mean?
The C shell (csh) is a command shell for Unix-like systems that was originally created as part of the Berkeley Software Distribution (BSD) in 1978. Csh can be used for entering commands interactively or in shell scripts. The shell introduced a number of improvements over the earlier Bourne shell designed for interactive use. These include history, editing operations, a directory stack, job control and tilde completion. Many of these features were adopted in the Bourne Again shell (bash), Korn shell (ksh) and in the Z shell (zsh). A modern variant, tcsh, is also very popular.
Techopedia Explains C Shell (csh)
The C shell was created by Bill Joy while he was a graduate student at UC Berkeley in the late 1970s. It was first released as part of the 2BSD Berkeley Software Distribution of Unix in 1978.
