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Korn Shell Style Features

This section describes features primarily inspired by the Korn Shell (ksh). In some cases, the Posix 1003.2 standard has adopted these commands and variables from the Korn Shell; Bash implements those features using the Posix standard as a guide.

• Korn Shell Constructs: Shell grammar constructs adopted from the Korn Shell
• Korn Shell Builtins: Builtin commands adopted from the Korn Shell.
• Korn Shell Variables: Variables which bash uses in essentially the same way as the Korn Shell.
• Aliases: Substituting one command for another.

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