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UNIX in a Nutshell: System V Edition

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5. The C Shell

This section describes the C shell, 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

  • Syntax

  • Variables

  • Expressions

  • Command history

  • Built-in commands

  • Job control

  • Invoking the shell

5.1 Overview of Features

Features of the C shell include:

  • Input/output redirection

  • Wildcard characters (metacharacters) for filename abbreviation

  • Shell variables for customizing your environment

  • Integer arithmetic

  • Access to previous commands (command history)

  • Command name abbreviation (aliasing)

  • A built-in command set for writing shell programs

  • Job control


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