// USER MANAGER

User Management Commands

• useradd - Create a new user account
• usermod - Modify an existing user
• userdel - Delete a user account
• passwd - Change user password
• groupadd - Create a new group
• groupdel - Delete a group
• groups - Show user's groups
• id - Display user and group IDs
• who - Show who's logged in
• su - Switch user
• sudo - Execute as superuser
• /etc/passwd - User account info
• /etc/shadow - Encrypted passwords
• /etc/group - Group definitions