groups and group management in Linux CLI - Mini Project: Build & Apply

Groups and Group Management in Linux CLI

📖 Scenario: You are a system administrator managing user groups on a Linux server. You need to create groups, add users to groups, and check group memberships to organize permissions properly.

🎯 Goal: Learn how to create a group, add a user to that group, and verify the group membership using Linux command line tools.

📋 What You'll Learn

Create a new group named exactly developers

Add an existing user named exactly alice to the developers group

Check and display the groups that alice belongs to

💡 Why This Matters

🌍 Real World

Managing user groups is essential for controlling access to files and services on Linux servers in real workplaces.

💼 Career

System administrators and DevOps engineers regularly manage groups to set permissions and organize users efficiently.

1

Create the group developers

Use the groupadd command to create a new group called developers.

Linux CLI

# Use groupadd to create the developers group
# Your code here

Need a hint?

Type sudo groupadd developers to create the group.

2

Add user alice to the developers group

Use the usermod command with the -aG option to add the user alice to the group developers.

Linux CLI

sudo groupadd developers
# Add alice to developers group
# Your code here

Need a hint?

Use sudo usermod -aG developers alice to add alice to the group.

3

Check groups for user alice

Use the groups command followed by alice to display all groups that the user alice belongs to.

Linux CLI

sudo groupadd developers
sudo usermod -aG developers alice
# Check groups for alice
# Your code here

Need a hint?

Type groups alice to see alice's group memberships.

4

Display the groups of alice

Print the output of the groups alice command to show the groups that alice belongs to.

Linux CLI

sudo groupadd developers
sudo usermod -aG developers alice
groups alice
# Output is shown automatically

Need a hint?

The output should list alice and developers among the groups.