Linux System Operations

Check disk and partition usage, see the disk layout and filesystem types, and find which folders are consuming space with df, lsblk, du, and ncdu.

Resolve 'container name already in use' errors caused by leftover containers when docker compose up fails to recreate services.

GPU utilization, memory, and process monitoring with nvidia-smi for one-shot or refreshed views, and nvtop for an interactive interface.

Operate systemd services, Nginx configs, process IDs, journal logs, Docker logs, and cron jobs on Linux servers and Arch workstations.

Review Linux system freezes and runtime failures, inspect previous boot logs, check driver and package state, and safely update an Arch Linux workstation.

Identify zram-only swap, understand why zram cannot store a hibernation image, and configure a two-layer swap setup with zram for runtime paging and disk-backed swap for hibernate.

Find and kill the process using a port with PIDs.