How do you make scan lines?

in a tutorial im doing im told to go edit-fill select patern on contents and then select then add scan lines? i have no idea how to do this...

http://photoshopcafe.com/tutorials/s...ines/scan.html

or you can easily download scanline pattern :)
from Devintart for example

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Originally Posted by Garis

or you can easily download scanline pattern :)
from Devintart for example

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or make your own

Its a moot point. Scanlines are so 05' :D

THANKS Solaris !

cheers