Your macro is not generating code that belongs inside of a data step. You have asked the macro to generate a FILENAME statement using the string path as the value of the BASEDIR parameter. So the result will be filename dirperm pipe "nfs4_getfacl path"; But you are not even trying to access this filename, even if it was generated properly. So your data step is just making a copy of the input data. You probably want to using the FILEVAR option on the INFILE command instead. Perhaps something like this: data work.temp; set work.tempdir; filevar=catx(' ','nfs4_getfacl',path); do while (not eof); infile dirperm pipe filevar=filevar end=eof truncover; input facl $80. ; output; end; run; This will add the character variable FACL with the output of the program and generate one observation for every line that the program outputs for that particular path. In reality you might want to read the output into more than one variable.
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