Chapter 8. csh and tcsh
This chapter describes the C shell and its enhancement,
tcsh. On some versions of Linux,
tcsh is used as the C shell; in that case,
the tcsh features described
in this chapter work even when you run
csh. The C shell was so named because many
of its programming constructs and symbols resemble those of
the C programming language.
The default shell on Linux systems is bash. If you
want to use csh or tcsh, you first
need to change your default. Each user's shell preference is kept in
the password table. If you are creating an account, you can set the
default shell when you add the user.
If the account already exists, use the chsh command
to change the shell (see the command descriptions in Chapter 3, "Linux Commands").
The following topics are presented in this chapter:
 |  |  | 7.8. Job Control |  | 8.2. Invoking the Shell |
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