How to add System user that not be shown in lightdm login screen window or User Accounts?
69419
How to add a user without /home?
33710
How can I set desktop defaults for new users?
55634
Java current machine name and logged in user?
15255
How can I add a new user as sudoer using the command line?
15746
How do I enable auto-login in LightDM?
147415
How to enable or disable a user?
102116
How Should I Correct the Owners and Permissions in an OS X User Folder?
38543
How to add a unix/linux user in a bash script
95392
No password asked at login screen just start session button with LightDM
141898
Can I automatically add a guest user (guest-session) to a user group? How can I do it)
10843
How to allow to run su instantly after I added the user to the appropriate group
47552
How can I limit the login times in linux for certain users?
18377
Is there to make the login screen appear on the external display in 18.04?
57220
How to add a "dummy" user to a board?
52627
Change default user for authentication
125289
Ubuntu user disappeared from machine
3716
How do I add myself back as a sudo user?