if you have a computer or server and you connect with remote desktop like me, sometimes you want to reboot your server or computer or you just want to shut it down, so whats the command you can use in DOS you do this.

simeple, the command to do this is: shutdown. i use this command to power off my computer from the dos command;

shutdown -s

more info:
Usage: shutdown [-i | -l | -s | -r | -a] [-f] [-m \computername] [-t xx] [-c "comment"] [-d up:xx:yy]

No args Display this message (same as -?)
-i Display GUI interface, must be the first option
-l Log off (cannot be used with -m option)
-s Shutdown the computer
-r Shutdown and restart the computer
-a Abort a system shutdown
-m \computername Remote computer to shutdown/restart/abort
-t xx Set timeout for shutdown to xx seconds
-c "comment" Shutdown comment (maximum of 127 characters)
-f Forces running applications to close without warning
-d [u][p]:xx:yy The reason code for the shutdown
u is the user code
p is a planned shutdown code
xx is the major reason code (positive integer le
ss than 256)
yy is the minor reason code (positive integer le
ss than 65536)