Log-in to bookmark & organize content - it's free! Author Stephanie Vance discussed the role of lobbyists and interest groups in Washington, D.C. This lesson looks at various examples of ...

Use "sudo usermod -a -G example_group example_user" to add a user to a group. To add a user to multiple groups at once, separate groups by commas, like "sudo usermod -a -G group1,group2,group3 example ...