options ls=132 nocenter;
libname atla base './ATLA';
libname chic base './CHIC';
libname hous base './HOUS';
libname kans base './KANS';
libname losa base './LOSA';
libname newy base './NEWY';
libname salt base './SALT';
libname wash base './WASH';
libname sttlng base './STTLng';
libname mystuff base '.';
libname library base '.';

data mystuff.all;
  set atla.atla2 chic.chic2 hous.hous2 kans.kans2 losa.losa2
      newy.newy2 salt.salt2 wash.wash2 sttlng.sttlng2;
  run;