python

Common Python Operations

RE in Python

Singleton in Python

Class Creation in Python

cpp

File Operations in C++

Common String Operations in C++

Compare Efficiency among if-else, ?:, and min()/max()

osx

Common Vim Commands

Common Terminal Commands on OS X

UNIX

Process Environment

Time and Date Routines

Standard I/O Library

Files and Directories

File I/O

web

Correct linenos in Jekyll

vim

Common Vim Commands