Help Hide Sneak Stealth

Syntax hide
       sneak
       stealth

Hide and sneak are similar skills, both related to remaining
undetected.  Hide has a very high chance of success, but only works
for as long as the character remains stationary.  Sneak may be used
when moving (including to sneak by monsters), but has a lower chance
of success.  Only warriors and thieves may learn these skills.
If you are from a race which have sneaking on by default, you can
disable it with the stealth command. You can see the status of your
sneaking-abilities in the output of score.

See also visible