On Mon, 11 May 1998, Thomas F. Maher, Jr. wrote:
> Linux seems to be using the "Bourne Again Shell", aka "bash", by default,
> but also seems to have the C shell installed, and possibly the Korn shell
> somewhere, I think...
>
> "Unix Shells By Example: The guide to the C, Bourne, and Korn Shell, Awk,
> Sed, and Grep" by Ellie Quigley (C) 1997 that the shell is the interface
> between the user and the "kernel", the "heart" of the OS, loaded into
> memory, at boot time, and when you type in commands, the shell parses the
> command line, handle the wildcards, pipes, and job control, searches for
> the command, and executes it. The Borne shell was based on Algol, and was
> first made by AT&T. It does mention that the Korn shell, named after the
> creator, David Korn, runs not only on Unix, but OS/2. Korn is a a superset
> of Bourne.... hrm... but it doesn't seem to mention where the Bourne Again
> Shell came from...
bash is another superset of Bourne, also including the few useful features
of csh. Essentially, the only remaining use for the c shell is entertainment:
try the following:
$ csh
% man: why did you get a divorce?
another fun exchange is:
% make fire
counter the resulting error message with:
% why not?
---------------------------------------
Mike Bresina ([EMAIL PROTECTED])
System Administrator
Intellicom Customer Service Center
http://www.vsat.net/
v. (715) 720-1760
f. (715) 720-1762
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