The Return Status (.RS)

.RS is set to the return status from any executed command (including those submitted with the ADDRESS instruction). The .RS environment symbol has a value of -1 when a command returns a FAILURE condition, a value of 1 when a command returns an ERROR condition, and a value of 0 when a command indicates successful completion. The value of .RS is also available after trapping the ERROR or FAILURE condition.

Note: Commands executed manually during interactive tracing do not change the value of .RS. The initial value of .RS is .RS.