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Task Guides

Exact, safe, task-first OS guides for when you need to do one thing now without losing accuracy or context.

Task-first help

Use these when you need one OS job done cleanly.

Task Guides are for practical work: create a user, repair file access, inspect listening ports, mount a drive, or check memory pressure. Each guide stays focused on safe sequencing, verification, and cross-links back into deeper learning.

Users, Groups, and Permissions 20 min
Create a User Account Safely

Add a user without over-granting privileges, then verify the account behaves the way you intended.

4 lessons 2 labs 5 command anchors
Open task guide
Processes, Performance, and Services 15 min
Check What Is Using Memory

Find which processes are consuming memory and decide whether the problem is one process, many processes, or overall system pressure.

4 lessons 2 labs 5 command anchors
Open task guide
Networking and Remote Access 15 min
Inspect Open Ports and Listening Services

Check which ports are listening, which process owns them, and whether that actually matches the service you expect.

4 lessons 3 labs 5 command anchors
Open task guide
Users, Groups, and Permissions 20 min
Change File Permissions Correctly

Fix access on a file or folder by checking ownership, current permissions, and the real user path before changing anything.

4 lessons 3 labs 5 command anchors
Open task guide
Files, Search, and Storage 20 min
Mount an External Drive Safely

Inspect an external disk first, then mount it deliberately without confusing the device, partition, filesystem, and mount point layers.

4 lessons 2 labs 5 command anchors
Open task guide