01
Command-line workflow
Shell navigation, process management, file-system operations, pipes, filters and practical troubleshooting.
Technical practice · Systems
Linux & Command-Line Systems
My Linux practice focuses on command-line work, service configuration, permissions, troubleshooting and basic hardening.
What I practised
Three areas of Linux practice.
02
Permissions and access
Unix permissions, user and group management, sudo configuration and the principles behind secure access control.
03
Services and networking
systemd, service behaviour, network configuration, firewall basics and the relationship between running services and attack surface.
Why I’m practising Linux.
I want to be comfortable checking what a Linux system is doing: which processes are running, how permissions are set and why a service isn’t working.