# Forum:Backslash doesnt work
&lt; Forum:Watercooler

Hi there,
I am playing nethack from time to time for years now (first version called hack on atari st&nbsp;:-) ).
Now I have a problem: I do not manage to get the known command. If I enter '\' I get the message "Unknown command M-_"
Any help would be great.
Michael

On OSX I have a similar issue. The solution is to use the menus (with the mouse) or to temporarily switch keyboard layouts just for the next command. -Tjr 20:20, October 6, 2009 (UTC)