interp_test stdout

   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%


   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%


   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%
   0%  12%  25%  37%  50%  62%  75%  87% 100%


ERROR: Please specify output= or outfile=


ERROR: Please specify output= and samplingpos=


ERROR: output= and outfile= are mutually exclusive


ERROR: samplingpos= and outfile= are mutually exclusive


ERROR: Unable to open output file <mo_such_file>


ERROR: Unable to open output file <outfile_corrupt.txt>