shell

http://blog.csdn.net/h70614959/article/details/8985165 http://www.runoob.com/linux/linux-shell.html

python

http://www.runoob.com/python/python-tutorial.html

sudo pip install -i https://pypi.tuna.tsinghua.edu.cn/simple numpy sudo pip install -i https://pypi.tuna.tsinghua.edu.cn/simple NLTK