Ubuntu/Apt
System Commands
Monitor and manage your Ubuntu system. Check disk usage, memory, CPU, running processes, and system logs for effective server administration.
17 commands
Pro Tips
Use 'df -h' for disk usage, 'free -h' for memory, and 'top' or 'htop' for CPU/process monitoring.
Use 'journalctl -b -p err' to see only error-level messages since last boot — cuts through noise.
Use 'lsblk' to see all block devices and their mount points — cleaner than 'fdisk -l'.
Common Mistakes
Running out of disk space on '/' can make the system unresponsive. Monitor with alerts at 80% threshold.
'kill -9' (SIGKILL) doesn't let processes clean up. Try 'kill' (SIGTERM) first and wait before force-killing.