Find errors in log messages

[Karthik22]

Hello All,
I have few sas program, it's log file in .txt format which is located in a folder. I need to read all the log files and find the error messages. Please suggest me the code to do this.

[Ksharp]

%let path= D:\test\SASLOG ;    /*the path of LOG file*/


filename x pipe "dir &path.\*.log /s /b";
data check_log;
infile x length=len;
input fvar $varying200. len;

length filename fname $ 200;
infile dummy filevar=fvar filename=fname end=last length=len;
do while(not last);
 input log $varying400. len;
 if upcase(log) in: ('ERROR' 'WARNING') then do;filename=fname;output;end;
end;
run;

proc print noobs;run;