The C shell (csh or the improved version, tcsh) is a Unix shell created by Bill Joy while he was a graduate student at University of California, Berkeley in the late 1970s. … The C shell is a command processor which is typically run in a text window, allowing the user to type and execute commands.

What is csh script?

The C Shell (csh) is a command language interpreter incorporating a history mechanism (see History Substitutions), job control facilities (see Jobs), interactive file name and user name completion (see File Name Completion ), and a C-like syntax.

How do I open a csh file in Linux?

An instance of csh begins by executing commands from the file /etc/csh. cshrc and, if this is a login shell, /etc/csh. login.