Consider that you may want to review the SAS log output, so it is possible to generate the SAS log to a file (with PRINTTO), and then if your processing is satisfactory to your liking, then run a post-processing DATA step to delete the file you are using to capture the SAS log, rather than just writing it to a dummy destination. Explore using a SAS DATA step with CALL functions FILEEXIST, FILENAME, and FDELETE, in order to accomplish the special-handling of your generated log file.
The link below is associated with the SAS companion for Windows platform documentation - other similar guides are provided for your operating environment.
Scott Barry
SBBWorks, Inc.
SAS Functions and CALL Routines under Windows
http://support.sas.com/documentation/cdl/en/hostwin/61924/HTML/default/function.htm
... View more