I installed OpenStack and then I shutdown the laptop. After turning on the laptop again I can't enter the programmer.
How can I save my work in Ubuntu?
There is a nice file named .bashrc. It is located in your home folder.
At the bottom you can save commands in it. This is a example:
alias mci='mvn clean install'
When I write mci I really am writing mvn clean install.
If you write history in terminal you get a print out of .bash_history file. Also located in your home folder.