https://github.com/github/gitignore/blob/master/Python.gitignore
git config credential.helper store
https://github.com/ekalinin/github-markdown-toc
/home/andrew/code/gh-md-toc ~/code/mobile_data/books.md
python3 -m pelican.server
tracd -s --port 8006 /opt/trac/ -d --basic-auth="*,/opt/trac/.htpasswd,My Test Env"
application/octet-stream Python POST binary data
貌似这个网站的访问现在已经很慢
https://github.com/jacexh/allitebooks-spider https://github.com/Kulbear/All-IT-eBooks-Spider
https://github.com/nagracks/py_rename
https://unix.stackexchange.com/questions/19654/changing-extension-to-multiple-files