Usage: lines
       lines <number>

Allows you to set the number of lines you have to your screen.  It can
range anywhere from 7 to 50 inclusive.  Without an argument, this
command will tell you what your current screen is set at.  This number
is only used in the infobar and [OLC](/help/wizhelp/olc/) for immorts.

See also: [INFOBAR](/help/commands/infobar/)

Full documentation: [Docs Game Commands](/docs/game/commands/)