specifies the text
of the message to be echoed to the computer. The text must be enclosed
in single or double quotation marks if the message is more than one
word. Otherwise, the quotation marks are not needed.
-NOECHO
specifies that no messages
are to be echoed to the computer.
Details
Messages that result
from errors in the autoexec file are printed in the SAS log regardless
of how the ECHO system option is set.