235  unzip planets.zip
  236  eog planets
  237  mdkir -p real fictional inhabited
  238  mkdir -p real fictional inhabited
  239  ls
  240  find
  241  mkdir planets
  242  cp real inhabited fictional planets/
  243  cp -r  real inhabited fictional planets/
  244  ls
  245  ls planets
  246  rmdir real inhabited fictional
  247  ls
  248  cd planets/real
  249  mkdir telluric gas-giant dwarf-planets
  250  .
  251  cd .
  252  cd ..
  253  find
  254  mv coruscant.jpeg cybertron.jpeg arrakis.jpeg fictional/
  255  find
  256  mv mercury.jpeg venus.jpeg earth.jpeg mars.jpeg real/telluric/
  257  mv jupiter.jpeg saturn.jpeg uranus.jpeg neptune.jpeg real/gas-giant/
  258  mv pluto.jpeg real/gas-giant/
  259  cp fictional/coruscant.jpeg fictional/cybertron.jpeg fictional/arrakis.jpeg real/telluric/earth.jpeg inhabited
  260  rm -r real/dwarf-planets/
  261  tree
262 history