Bash

bash(1) (Bourne-Again Shell) is a sh(1)-compatible shell with greatly expanded syntax.

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Installation

Most Linux and BSD distributions offer a bash package. bash(1) is pre-installed and pre-configured as the login shell for many Linux distributions.

MacOS formerly used bash(1) as the login shell.

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Language

• Aliases

• Arithmetic

• Arrays

• Built-in Commands

• Completion

• Expansion

• File Descriptors

• Functions

• Job Control

• Logic

• Looping

• Pipelines

• Process Substitution

• Quoting

• Select

• Shell Options

• Shell Variables

• Redirection

• Tests

• Traps

• Variables

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See also

Bash Reference Manual, the GNU reference document

BashFAQ on Greg's Wiki

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