The LOG and PRINT SAS system options, when specifed at invocation, enable you to redirect your SAS Log and SAS Output files when running SAS in batch mode. Additionally, the ALTLOG and ALTPRINT SAS system options allow you to route COPIES of these files to another file.

You can also use PROC PRINTTO to route the log and/or output to a file. The example below shows how to route both the log and output to text files for review later.

You can remove either PRINT= or LOG=, depending on the results you are trying to achieve.

The NEW option specifies that only new information is put into the file. If the file exists, all other information is removed and only new log or procedure output is placed into it. If you remove the NEW option, an existing file will have log or output information appended to what is already in the file. The second PROC PRINTTO is used to close the external file and restore the default behavior to your SAS session. This syntax can be used with or without the above ALT/LOG and ALT/PRINT options in effect.

 
filename mylog 'mylog.txt';
filename myout 'myout.txt';

proc printto print=myout log=mylog new;
run;

proc print data=sashelp.class;
run;

proc printto;
run;

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