Problems with logging out
There are stopped jobs.
You have started a job by issuing a command and have then
"stopped" the command from executing and placed it in the
background using the key sequence Ctrl-z.
1. Start the job again by typing fg and pressing the
2. Quit the job or wait until it has finished.
3. Try to logout again.
If you have several stopped jobs, you will have to go
through this procedure for each one before you are able
Not login shell.
You are working in another "shell" that has been started
from within your "login shell".
1. Enter the command exit.
2. Try to logout again.