Agilent Technologies 5000 Series - page 88

88 Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Reference
3Commands by Subsystem
Introduction to
Root (:)
Commands
Root level commands control many of the basic operations of the
instrument. These commands are always recognized by the parser if they
are prefixed with a colon, regardless of current command tree position.
After executing a root- level command, the parser is positioned at the root
of the command tree.