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Mac OS X for Unix Geeks by Brian Jepson, Ernest E. Rothman

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Using the tcsh Shell

The tcsh shell offers advanced command-line editing capabilities, filename completion, and a variety of customizations. Although tcsh is the default user shell, Mac OS X 10.2 (Jaguar) uses the Bourne shell (/bin/sh) for handling scripts (such as those found under the /etc directory), and we suggest you do the same. However, tcsh is a fine user shell, and this section explains how to customize it and take advantage of some of its features.

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