ps aux (我经常多一个‘－’，有一行错误信息)
netstat (具体man or info to CC)
／sbin/shutdown -h 10 'Server will be shutdowned after 10 mins'
-r Requests that the system be rebooted after it has been brought down.
-h Requests that the system be either halted or powered off after it has
been brought down, with the choice as to which left up to the system.
-H Requests that the system be halted after it has been brought down.
-P Requests that the system be powered off after it has been brought down.
-c Cancels a running shutdown. TIME is not specified with this option, the
first argument is MESSAGE.
-k Only send out the warning messages and disable logins, do not actually
bring the system down.
shutdown -h now/0
shutdown -h 10:00 /*10点关机
shutdown -h ＋10 10mins后关机
shutdown -r now (reboot at once)
shutdown -r +30 'System will reboot in 30mins'
shutdown -k 'System will reboot'(发送警告信息)
shutdown -r now几乎与reboot相同，关机之前输入回填指令：
fsck - check and repair a Linux file system
To clear the wrong disk block of /dev/hda7 （单人单机模式root）
感谢观看 兄弟连教育 分享