Incomplete logout panel

[Claude Jones]

On Sun August 28 2005 6:04 am, gb spam wrote:
>
> cat > /etc/sysconfig/desktop << EOF
> DESKTOP="KDE"
> DISPLAYMANAGER="KDE"
> EOF
>
> You will need to restart X afterwards (not just log out).

I know this doesn't have anything to do with the subject, but, would you mind 
explaining this use of 'cat'? You appear to be using it as a quick text 
editor. When I see new ways to do stuff like this, I make an effort to 
understand how it works, but, I'm stumped. I've read the man cat but there's 
nothing there. I don't know where to look next. 
-- 
Claude Jones
Bluemont, VA, USA