Disk usage per directory

More linux commands

• Check open ports
  ss -tlnpcopy

  TCP listening ports with PID and process name (modern netstat)

• Find process by port
  ss -tlnp | grep :<port>copy

  Which process is listening on a specific port

• CPU usage per process
  ps aux --sort=-%cpu | head -15copy

  Top 15 processes by CPU consumption

• Memory usage per process
  ps aux --sort=-%mem | head -15copy

  Top 15 processes by memory consumption

• Follow systemd service logs
  journalctl -u <service> -f --since '10 minutes ago'copy

  Stream logs for a systemd unit from the last 10 minutes

all 133 linux commands →