2.9BSD - /usr/src/lib/libU77/test/gwdtst.f

   1:         character*50 path
   2:         integer getcwd, chdir
   3: 
   4:         ier = getcwd(path)
   5:         write(*,*) ier, path
   6:         ier = chdir("..")
   7:         ier = getcwd(path)
   8:         write(*,*) ier, path
   9:         end