• Invocation Options

• Set Options

• Shopt Options

1. Invocation Option --rcfile

--rcfile FILE | --init-file FILE

• Execute commands from file instead of the standard personal initialization file ~/.bashrc if the shell is interactive (see INVOCATION below).
• An argument of --init-file is equivalent to --rcfile.
• These options must appear on the command line before the single-character options to be recognized.