501  cd humboldt/
  502  cd f12cs279
  503  cd 279labs
  504  cd 279lab13
  505  more shelly
  506  shelly
  507  looky=shelly
  508  echo $looky
  509  looky=`shelly`
  510  echo $looky
  511  shelly > looky
  512  more looky
  513  shelly 2> looky
  514  more looky