This is simple TODO app (command line interface only) built using python 2.7
Make sure you have python installed in your system, to check python installed, just open terminal and run
python -V
If not installed, google it "how to install python in mac/linux/win"
Else
git clone ...
and then open terminal and run it like
$ python todo.py PARAMS
list [all / completed] To list all tasks
add "Task details" To add new task
complete #TaskID To complete particular task followed by TaskID
delete #TaskID To delete particular task followed by TaskID