Make a Wikipedia bot is one of the first thing I made in Python. I used to make toolbox, categories and tasks for sort articles. There are a lot of client library for use MediaWiki API, more than 20, and my goal wasn't really to use MediaWiki API but more to read and write ...

There are some tricks I do a long time ago then I forget or want to share:

Save time with history expansion

First daily use case, I want to run a command but I forgot to make it as root user.

$ ls /root/
ls: cannot open directory /root/: Permission denied
$ sudo !!
sudo ls /root/
file1 ...