1: c test overriding file names from program with 2: c environment variables 3: c formatted, seq 4: write(8,8000) 8 5: 8000 format('sample line ',i5) 6: open(9,file='subdir/frmt.d') 7: write(9,8000) 9 8: c unform, seq 9: open(10,form='unformatted') 10: write(10) 10 11: open(11,file='unfr.dat',form='unformatted') 12: write(11) 11 13: c direct 14: open(12,access='direct',form='formatted',recl=20) 15: write(12,8000,rec=3) 12 16: open(13,file='dirct',access='direct',form='unformatted',recl=8) 17: write(13,rec=3) 127, 16*127 18: end