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>(printdir (first directory) 0)
/USR
  MARK
    BOOK
      CH1.R
      CH2.R
      CH3.R
    COURSE
      COP3530
        FALL05
          SYL.R
        SPR06
          SYL.R
        SUM06
          SYL.R
    JUNK
  ALEX
    JUNK
  BILL
    WORK
    COURSE
      COP3212
        FALL05
          GRADES
          PROG1.R
          PROG2.R
        FALL06
          PROG2.R
          PROG1.R
          GRADES