Bash Reference Manual. Node: Bourne Shell Features
Basic Shell Features
Top
Bash Features
Chapter 4: Bourne Shell Style Features
This section briefly summarizes things which Bash inherits from
the Bourne Shell: builtins, variables, and other features.
It also lists the significant differences between Bash and the Bourne Shell.
Many of the builtins have been extended by POSIX or Bash.
Basic Shell Features
Top
Bash Features