Total tweet count for given username

#1

I am very new to twitter, I have just started to test it using PHP.
I am not able to get total tweet counts for given user.
I can get latest 20 items and I have tried also other examples, but I am not able to get total count of tweeits for given user.

#2

twurl "/1.1/users/show.json?screen_name=andypiper" | grep statuses_count