I'm new to Ubuntu 12.04 LTS. My problem is described below.
My terminal prompt is the
$ sign only. It's not showing like
My second problem is that when I try to become the super user by
sudo su, it prompts for my password but after that, it shows
When I'm trying to use previous commands by using the ↑ key, it prints this
^[[a, nor does it work for the ← or → keys.