Jack Schwartz wrote:
> Hi everyone.
>
> Here is a revised webrev of code to get rid of the Hard Disk entry in
> the grub menu for USB sticks.
>
> Try as I might, I couldn't figure out a way using sed to do what I
> needed to do. So, instead I wrote a function to do it: it looks for
> lines with "Hard Disk" in them, and then deletes until either a blank
> line is seen or the word "title" appears at the beginning of a line.
> "Title" lines are kept in; blank lines are deleted.
>
> http://cr.opensolaris.org/~schwartz/081112.1/webrev/
>
> It's not a one-liner anymore, but should be straightforward enough...
>
It's OK, but I do recommend getting to know nawk; it does a lot more
than sed, much more compactly than the shell:
nawk '
BEGIN { inhard=0 }
/^title.*Hard Disk$/ { inhard=1 }
/^title/ { if (index($0,"Hard Disk") == 0) inhard=0 }
inhard == 0 {print}
' menu.lst
does exactly what you want.
Dave
