> Ok, thats fine. But
> ;9 echo abcdefdffghi | 9 sed 's/(abc(d?f)*)(ghi)/\1/'
> 
> this I don't understand...
> maybe it's too late for me...

you're re doesn't match at all.  therefore no
substitutation is made.  perhaps it would be
easier to see with this formulation:

9 echo abcdefdffghi | 9 sed -n 's/(abc(d?f)*)(ghi)/\1/p'

- erik

Reply via email to