Two quick questions

From: S.Yin (syin_at_few.vu.nl)
Date: 11/29/05 

Date: Tue, 29 Nov 2005 17:53:01 +0100

1. how to deny the messages sent by 'wall' command ?

2. how to split the terminal screen vertically ? I find that the
'screen' command can only split the screen horizontally.

Thanks for your help.

S.Yin