What is the code of the shutdown command?

C:\ Documents and Settings \ Administrator & gt Shutdown/? \ r \ nUsage: shutdown [-i |-l |-s |-r |-a] [-f] [-m \ computer name] [-t xx] [-c "co \ r \ nment"] [-d up: xx: YY] \. The same) \r\n-i displays the GUI interface, and it must be the first option \r\n-l Logout (cannot be used with option -m) \r\n-s Shut down this computer \r\ n-rShut down and restart this computer \r\n-a Abort the system shutdown \ r \ n-a N-c "comment "closing comment (maximum 127 characters) \r\n-f forcibly closes the running application without warning. Nxx is the primary cause code (positive integer less than 256) \ r \ n y is the secondary cause code (positive integer less than 65536) \ r \ n \ r \ NC:\ Documents and settings \ administrator > \ r \ n \ r \ nYou can also shut down at xx:xx (xx means shutdown time) \ r \ n \ r \ nYou can also use shutdown -s -t (add time in seconds here) \r\n-s to mean shutdown, and-