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Part IV: Under Mac OS X's Hood > tcsh: An Extended C Shell

Chapter 21. tcsh: An Extended C Shell

This chapter describes tcsh, an enhanced version of the C shell. tcsh is also 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 is bash. However, earlier versions of Mac OS X used tcsh as the default shell. If you want to use tcsh, you first need to change your default. To change your default shell, launch the Terminal application (/Applications/Utilities), and then change the shell to /bin/tcsh in the Terminal's Preferences (Terminal→Preferences).


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