Instructions

2
The vertical bar is used to separate multiple parameters and one of the
parameters must be selected when using the command.
3. Square Brackets []
The content in the square brackets can be omitted.
4. Triangle Brackets <>
The parameter enclosed in the triangle brackets must be replaced by an effective
value.
Command Abbreviation
All the commands are case-insensitive and you can use any of them. If
abbreviation is used, all the capital letters in the command must be written
completely.