[kubuntu] user@hostname after every command

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http://ubuntuforums.org – I have rhis weird problem with kubuntu 12.04, I was installing oracle DB according to this guide: http://edin.no-ip.com/comment/418 and now every time I execute any command or just hit enter I see: localhost:~# root@<hostname> localhost:~# on ssh session I see: localhost:~# localhost: ~root@<hostame> localhost:~# Wha to do? it is very annoing. (Hardware)