common commands

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Switch

• ?
• display lldp neighbor brief
  dis ll n b
• display mac-address | include [mac The last four digits are enough ]
  dis mac-add | inc [mac The last four digits are enough ]

windows

• help
• ipconfiig /all
• netstat

linux
Hardware ： disk , Interface card

• lsblk
• lspci [ | grep -i ssd] [ | grep -i disk] [ | grep -i volu] [ | more] [ | less]
• lvm
• pvs
• pvremove dev/sdcx
• vgs
• vgdisplay [ | more | less]
• vgremove --select vg-uuid=[]
• dd if=/dev/zero of=/dev/sdf
  NOTE：dd The command needs to mount the system image for use , Don't reload the system , Choose to enter rescue Rescue mode .

The Internet

• ifconfig
• route
• systemctl restart|status network

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