How to use sudo inside of a Run Script build phase in Xcode 4?

Question

I need use execute a command inside of a script in a Run Script build phase in Xcode 4 using sudo. However, the compiler complains:

sudo: no tty present a

Answer 1

No need to write your sudo password anywhere. Just open a terminal window and type

$ sudo echo "hello"

Once you've typed your password, it will be good for a while - not sure how long - and the shell spawned by Xcode will inherit this permission.

If you get the "no tty present" message again later, just repeat the procedure