创建文件 create

    1. $ mkdir out
    3. $ cat out/lorem_ipsum.txt
    4. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
    5. quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
    6. consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse