login/non-login and interactive/non-interactive shells
33924
Difference between Login Shell and Non-Login Shell?
43363
Is it possible to enable System Protection from the command prompt?
30487
How to force a login for an administrator when using Remote Desktop Connection?
35024
Shell prompt customization and cmd behavior
144008
Login directly to terminal instead of GUI
118841
How can I run a script that starts before my login screen?
95157
How do I change login screen theme or background in Ubuntu 20.04?
20385
How to run a command at login?
137008
How do I run a sudo command needing password input in the background?
114160
How to automatically run commands on SSH login?
63198
How can I logout from the GUI using CLI?
4703
What are the different ways that a message can be displayed to a bash shell after a user logs in?
32057
How to return the login screen to the default
18086
How can you log out via the terminal?
53271
How can I disown a running process and associate it to a new screen shell?
4227
How do I login as root?
32609
How to tell what method was used to log in (Password vs. Keyfile) from the bashrc