Help System (web edition)

UPDATE L1,L2,<key_width>,<edit_file> 
replaces lines in a given <edit_file> by lines L1-L2 given in the
current edit field. The proper lines to be replaced are matched by
<key_width> first characters on each line. The order of the lines
in <edit_file> can be different from that in the current edit field.

A typical example of UPDATE is in the edit field <Survo>\U\SYS\CURRENCY.EDT .
There the UPDATE scheme will replace lines in file <Survo>\U\SYS\MEASURES.EDT
by updated values of international money exchange rates.

  T = More information on text editing