Chapter 5. tcsh: An Extended C Shell

This chapter describes tcsh, an enhanced version of the C shell. On many systems, tcsh is also the regular C shell (/bin/csh); 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 following topics are presented:

• Overview of features

• Invoking the shell

• Syntax

• Variables

• Expressions

• Command history

• Command-line manipulation

• Job control

• Built-in commands

For more information on tcsh, see Using csh & tcsh, which is listed in the Bibliography. The web site for tcsh is http://www.tcsh.org.