Changing host as in "root@localhost"

:( My terminal is tarting up showing : [alex@S0106000795d9de42 alex]$
and it used to show [alex@localhost alex]$
even after SU it displays :
[root@S0106000795d9de42 alex]#
How can I change it back to LOCALHOST ??? :wink:
Will be very thankful for any help.

Best of Luck Alex

2 key points

1st
modify /etc/hostname

echo qub333rules > /etc/hostname

--and--

modify /etc/hosts

echo qub333rules <tab> 127.0.0.1 > /etc/hosts

Or just open up that file with a handy-dandy text-editor and change it.