openSUSE: Add user to group

Adding a user to a group on openSUSE is easy:

• Read The Fine Manual
  

  $ man usermod
  

• Become root
• Check if the group exists, and if it doesn't, create it
  

  # groupadd mygroup
  groupadd: group 'mygroup' already exists
  

• Add user to the group
  

  # usermod -a -G mygroup myuser
  

There are caveats, of course. For example, the above doesn't work when using LDAP/Kerberos login:

# usermod -a -G vboxusers borlbej
usermod: Account `borblej' does not exist.

In openSUSE, we use Yast (Security and Users -> User and Group Management) for this. (Hint: "Set Filters".)

In the old days, we would typically just edit /etc/group directly.

The new group setting takes effect only after logging out and logging back in. If using a desktop environment, one must log out of the desktop, not just close the terminal window.