I am facing a very strange error. I was using fish shell with oh-my-fish (https://github.com/bpinto/oh-my-fish) and I tried to change my command line to bash using:
$ chsh -s /bin/bash [my_username]
after that, the command prompt stack! And after a restart there is no shell at all. Command line opens but no command works. Since there is no shell available I do not know how to bring back any available shell. There is no error anywhere.
I tried to edit manually the /etc/passwd and change the shell there but still no luck. Also, run the chsh command with another session from another admin user. Nothing happens.
Using Ubuntu 14.04.