Leave

Usage: leave game [message <msg>]

This command will save your character and terminate your session. Sleep at
an inn: your equipment goes into the locker beside your pallet and is
waiting for you when you next log in.

Anywhere else, it refuses - nothing out there would look after your
belongings while you sleep. Newcomers are the exception: while you are
still finding your feet you may use it wherever you are, and you will be
guided to shelter first.

See also: quit.