Learn Linux user management with useradd, usermod, userdel, and passwd — essential for every server administrator.
Step 1: Create a new user
sudo useradd -m -s /bin/bash -c "John Doe" john
sudo passwd johnStep 2: Add user to sudo group
sudo usermod -aG wheel john # RHEL / AlmaLinux
sudo usermod -aG sudo john # Ubuntu / DebianStep 3: Modify user settings
sudo usermod -s /bin/zsh john # change shell
sudo usermod -L john # lock account
sudo usermod -U john # unlock accountStep 4: Delete a user
sudo userdel -r john # remove user and home directory
Useful commands
id john
getent passwd john
groups john
cat /etc/passwd