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C shell

Source: The Free On-line Dictionary of Computing (27 SEP 03)
C shell

	C shell
     
         (csh) The Unix command-line interpreter
        shell and script language by William Joy, originating
        from Berkeley Unix.
     
        Unix systems up to around Unix Version 7 only had one
        shell - the Bourne shell, sh.  Csh had better interactive
        features, notably command input history, allowing earlier
        commands to be recalled and edited (though it was still not as
        good as the VMS equivalent of the time).
     
        Presumably, csh's C-like syntax was intended to endear it
        to programmers but sadly it lacks some sh features which are
        useful for writing shell scripts so you need to know two
        different syntaxes for every shell construct.
     
        A plethora of different shells followed csh, e.g. tcsh,
        ksh, bash, rc, but sh and csh are the only ones which
        are provided with most versions of Unix.
     
        (1998-04-04)