REDO (Land or Sea)
Prints your last command for you to re-use or to modify and
use. It uses HP Editor/3000 style commands with reserved
letters: I for Insert, R for Replace, and D for Delete. e.g.,
REDO MOVE C FROM 8,12 TO 9,13 I2 MOVE C FROM 8,12 TO 29,13 (or) GATHER C FROM 11,5 TO 14,22 RM GATHER M FROM 11,5 TO 14,22 (or) STIPSJLDE (D=R) DDDDIULAT STIPULATE (D=R)