* Ed Morton <morton@lsupcaemnt.com> :
> Troy Piggins wrote:
> >* Rakesh Sharma <sharma__r@hotmail.com> :
> >>Troy Piggins wrote:
> >>
> >>>I'm not too good with awk, but I don't think this can be done
> >>>with sed.
> >Apparently not too good with sed either ;-\
> >>sed -e '
> >If this can be done with sed then great,
>
> Not really. Isn't this:
>
> awk '
> /^--$/ && !prev { print "" }
> { print; prev = $0 }
> '
>
> a little more easily understandable than the posted sed
> solution:
>
> sed -e '
> $!N
> /^\n/{P;D;}
> /\n.*signature/!{P;D;}
> s/\n/&&/
> '

Agreed.

> sed is a fine tool for simple operations, but there's just no
> point attempting anything more with it.

That's what I thought, and that's why my OP assumed awk would be
the tool. Thankyou for your solution. I'll do some reading
tomorrow when I get a chance to disect it. It certainly reads
easy.

Cheers

--
Troy Piggins
,-o
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