Global variables
From Dark Signs Online
Global variables are variables set in Dark Signs Online which can not have any other value assigned to them.
User Specific Variables
$time Contains string of local time.
$date Contains string of local date.
$now Contains string of local date and time.
$username Username of the current user.
$dir The current directory of the current user.
Server Specific Variables
$serverdomain The current server domain that a script is being run on
$serverip The current server ip that a script is being run on
$serverport The current server port that a script is being run on