The version of the C shell included in openSUSE is called tcsh, a tribute to the TENEX
mainframe operating system. It has programmable command completion and a referable
command history.
The best thing about tcsh, though, is its command spell checker. If you type frotune at a
tcsh prompt, it will ask if you mean fortune. A yes answer gives you a fortune cookie.
Configuration options are set in two files: etc/.tcshrc and etc/.tcshrc.conf.
Choosing and Using a Shell 81
5
Running zsh
The Z shell strives to be the best of both worlds, enabling you to safely write scripts or use
it interactively. It is based on the Korn shell (ksh) written by David Korn, with tons of
extra features. Many folks love zsh for its power and flexibility, but with great power
comes great complexity. This shell??™s Info file has 21,530 lines of documentation in 11
subnodes. We won??™t cover all of that here.
zsh has virtually all the neat features previously listed and works quite well with the
default configuration file (etc/zshrc).
Some features, such as command spell check, are not set by default, but it is a fairly easy
task to edit them.
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