Cmd Sub

Command Substitution

• ( [command list] )
• Execute the list of commands in a subshell.
• This is exactly the same thing as the command grouping above, only, the commands are executed in a subshell. Any code that affects the environment such as variable assignments, cd, export, etc. do not affect the main script's environment but are scoped within the brackets.
• *Note: You do not need a ; before the closing ).