How to turn this into a dokerfile

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How to turn this into a dokerfile

  1. cd ~
  2. mkdir xdebug
  3. cd xdebug
  4. ``
  6. wget http://www.xdebug.org/files/xdebug-2.1.0.tgz
  7. tar -xf xdebug-2.1.0.tgz
  8. cd xdebug-2.1.0
  9. cd xdebug
  10. phpize
  11. ./configure --enable-xdebug