The driverel alias will move a motor by a specified amount relative to
its current position.
The syntax for the driverel alias is:
driverel motor value
For example: driverel s1 10 (this will drive motor s1 10 degrees past
its current position) driverel q -0.5 (this will drive
psqeudomotor q 0.5 inverse angstrom below its current position)
NOTE that the following information is not required to understand the
usage of the command but is included for completeness:
The alias definition is:
drive
%1 @(%1)+%2
The syntax @(%1) will replace this string by the current position for
motor %1. For more information about the syntax of these
@(...) variables, see the How to use and command-line variables
guide.
