Maybe you already had the frustration of falling into a generic
man page after typing
$ man builtin_command
builtin_command is a
bash built-in command like
alias. As I realized a few minutes ago, there's a special help command for these functions, and this command is no other than...
So, if you want to get specific information about a
bash built-in like
alias, just type
$ help alias
and you'll be rocking.
Last, but definitely not least, the
help command by itself
provides a complete cheat sheet for
bash shell programming. This is invaluable for those that already know how to program, but need to get acquainted with