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Bash Specific Features

This section describes the features unique to Bash.

• Invoking Bash: Command line options that you can give to Bash.
• Bash Startup Files: When and how Bash executes scripts.
• Is This Shell Interactive?: Determining the state of a running Bash.
• Bash Builtins: Table of builtins specific to Bash.
• The Set Builtin: This builtin is so overloaded it deserves its own section.
• Bash Variables: List of variables that exist in Bash.
• Shell Arithmetic: Arithmetic on shell variables.
• Printing a Prompt: Controlling the PS1 string.

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