Labs
Longer-form practice for sequencing, context, and command meaning in a real terminal flow.
Scenario practice
Back to Practice Use Labs when you want understanding, not just command speed.
Each lab gives you a guided field guide and a drill deck so repetition still grows from meaning.
HW System Lifecycle & Hardware
FS File System Mastery
LAB-FS-01 The Linux File System Tree LAB-FS-02 Inside /etc - The Config Vault LAB-FS-03 Inside /var - The Living Data LAB-FS-04 Inside /proc and /sys - The Virtual Windows LAB-FS-05 Device Files & Mounting LAB-FS-06 Inodes, Links & File Internals LAB-FS-07 Safe Copy, Move, and Delete Workflow LAB-FS-08 Cross-Platform Path Translation LAB-FS-09 Find Large Files and Hidden Space LAB-FS-10 Links, Hidden Files, and Metadata Checks
DSK Storage and Disk Management
USR User & Group Management
ACL Permission Management
PS Process Management
MON Monitoring & Logging Vault
NET Networking and Communication
PKG Package & Software Management
AUTO Automation & Scheduling
TXT Text Processing