What is the role of run script in Build Phases in Xcode 4

Question

Can any one explain actual usage of run script in xcode 4.

1. what is the usage of run script.

2. which type of scripts we can add in run script.

3. when will execute the run script.

4. explain some of the example to write the run script.

can you give over all idea of run script in Build Phases in xcode 4.

Answer 1

1) You can execute scripts during build.

2) Mainly sh scrips.

3) You can drag the phase where ever you like it.

4) Have a look at this link.