Ruby basics

Learn some basics of Ruby

Ansible basics

Execute remote command from command line and playbook with ansible.

Vagrant getting started

Quick steps of getting started with vagrant including installation, vm starting up and a few commonly-used commands.

Quick steps of using python virtualenv

Quick steps of setting up and using python virtualenv.

Iterm2 color issue

An issue found for iterm2 on Mac is that the color of profiles does not apply, e.g. run “ls -l” command you don’t see the different colors for directories or files.

How to config shadowsocks server

How to config shadowsocks server on ubuntu.

Log4j tips

Some log4j tips.

Python fabric

Basic usage of python fabric.

Python literal conversion

Python literal conversion using the “ast.literal_eval()” method.

Bash cheatsheet

Bash cheatsheet.