$ todo add "Get a date with a nice girl"
added

$ todo add "Kiss the nice girl"
added

$ todo list
1. [ ] Get a date with a nice girl
2. [ ] Kiss the nice girl

$ todo done 1
done

$ todo list
1. [X] Get a date with a nice girl
2. [ ] Kiss the nice girl

$ todo remove 2
removed

todo list
1. [X] Get a date with a nice girl