- ip a
- tail -f /var/log/111.log
- systemctl restart sshd
- ping 8.8.8.8
- ls -la passwd
- chown root passwd
- cat passwd
- top
- ps aux
- cat passwd-
- cp passwd- passwd
- chmod 644 passwd
- chown root:root passwd
- cat group
- ls -la passwd
- cat sudoers
- passwd root
- reboot
- top
- history
- cat /etc/rc.local
- passwd root
- df -h
- ls -la /etc/passwd
- cat /etc/passwd