|• Simple Command Expansion:||How Bash expands simple commands before
|• Command Search and Execution:||How Bash finds commands and runs them.|
|• Command Execution Environment:||The environment in which Bash
executes commands that are not shell builtins.
|• Environment:||The environment given to a command.|
|• Exit Status:||The status returned by commands and how Bash
|• Signals:||What happens when Bash or a command it runs
receives a signal.