Running script from script query

Hi

I have a question

Suppose i have three scripts & i have created a top level script to run these.
eg.
leaf1.csh
leaf2.csh
leaf3.csh

top.csh

Now in top.csh i have written
#!/bin/csh
leaf1.csh
leaf2.csh
leaf3.csh

Now my question is when i run this top level script when it starts running leaf1.csh, shall leaf2.csh start running simultaneously or it should wait untill leaf1.csh completes execution

Thanks
Sarbjit

It will wait untill the first one finishes unless if u run it in background ( by appending a &)