What is the canonical way for accessing the local documentation on any available Shell Options builtin with
I'm using Ubuntu 12.04 and can run
help shopt to get a description of what
shopt: shopt [-pqsu] [-o] [optname ...] Set and unset shell options. ...
I can list the various Shell Options and their values (
shopt -p). But how do I find out what each one actually does without leaving the comfort of my Linux box? I'm not looking for the descriptions online. Is there a
man page or something I'm missing?