stack exec -- haskell-todo-exe -p ./example.txt info
stack exec -- haskell-todo-exe -p ./example.txt init
stack exec -- haskell-todo-exe -p ./example.txt list"
stack exec -- haskell-todo-exe -p ./example.txt add TITLE -d DESCRIPTION -p 2 -b "2010/08/21 12:00:00"
stack exec -- haskell-todo-exe -p ./example.txt remove 0"
stack exec -- haskell-todo-exe -p example.txt update 0 --title Bier