Listing and cleaning out old xauth entries on CentOS 5

When we do a X-forwarding,

$ ssh -X somehost.com

and you if you do a xauth list to check on your X-forwarding session, you can see an xauth entry something like:

$ xauth list

..... 
current-local-server:17  MIT-MAGIC-COOKIE-1  395f7b22fb6087a29b5fb1c9e37577c0
.....

Somehow after exiting the X-forwarding, somehow the session is still found in the xauth list

To clear the xauth entries, you can take a look at Clean up old xauth entries

In that blog entries, the author,

$ xauth list | cut -f1 -d\  | xargs -i xauth remove {}