How do I use Tasks Tracker?

Task-Tracker -- A simple command line project task tracking tool
https://launchpad.net/tasks-tracker
Developed by: [Mohamed Diarra <moh@softwebia.com>]

Usage: tasks: [-n TASK]

Options:
  --version show program's version number and exit
  -h, --help show this help message and exit
  -R, --recursive run commands recursively in subfolders

  Setup commands:
    --init initialize tasks in folder
    --un-init un-initialize tasks for current folder (Removes .tasks
                        file).
    --reset initialize new tasks in folder, loses all previous
                        tasks
    --empty-trash permanently delete tasks in trash

  Basic tasks commands:
    -n ADD, --add=ADD add a new task
    -c, --completed set a task as completed
    -d, --delete remove a task
    -a, --active set a task as active

  List commands:
    -i, --indexed show active tasks with index
    -C, --show-completed
                        show only completed tasks
    -D, --show-deleted show trashed tasks
    -A, --show-all show all tasks (active, completed and trashed)