help

? [<term>]

Without any argument, shows the brief guide of online help system. With argument gives the reference manual description of term. In addition to this, many commands allow for passing ? as argument to obtain further help.

In case examples are provided for the <term>, they can be displayed using ?ex <term>. In this case the normal help output will also contain an informational message that examples are available.

When called as ?? both documentation and examples are shown.