# User management
useradd username # Add new user
useradd -m -s /bin/bash username # Create with home directory
userdel username # Delete user
userdel -r username # Delete user and home directory
usermod -aG groupname username # Add user to group
passwd username # Change user password
chage -l username # View password aging info
# Group management
groupadd groupname # Create new group
groupdel groupname # Delete group
gpasswd -a username groupname # Add user to group
gpasswd -d username groupname # Remove user from group
# View user/group information
id username # Show user ID and groups
groups username # Show user's groups
getent passwd username # Get user info from database
getent group groupname # Get group info
Rewriting in plainer words…
This answer doesn't lend itself to a diagram - it reads best . No credits were charged.
Why there's no diagram: “”
The interactive diagram is below the answer - jump to diagram ↓ · Below it, the related concept . Jump to it ↓
The diagram below the answer is the concept . Jump to it ↓
Tailored explanation · switch back to · ·
What should the new diagram focus on?