[CentOS] How to unpack rar file?

Thu Jan 13 22:26:01 UTC 2011
m.roth at 5-cent.us <m.roth at 5-cent.us>

ken wrote:
> I think I did this once a long time ago, but don't recall clearly....
> How do I unpack a .rar file?
I vaguely remember there's an rar package or utility, and unrar the
relevant command.