If an external program returns with RC <> 0, REXX
prints an error message.
Execution of the program line
2 *-* 'ls xxx'
+++ RC=1 +++
if the file xxx does not exist.
This behaviour is sometimes rather annoying. In such a
case the REXX program should be able to decide which
message is printed. Some programs use the return code
to indicate different states, so RC <> 0 does not
necessarily indicate an error state of the external
At least there should be an option to suppress these