← Theory library

Linux Admin theory

Shell pipelines, octal permissions, text processing (awk/sed), and systemd.

Practise in the Code Lab →

Easy

1. Core Commands and NavigationNavigating filesystem and inspecting directory state.
2. Linux Permissions: chmod, chown, and umaskOctal permissions and ownership.

Medium

3. Pipes, Redirection, and Text Processing (grep, sed, awk)Stream filtering and report generation.
4. Process Management & systemd Service Unitsps, top, kill, and systemctl.