On Nov 16, 1:54 pm, [email protected] (Vincent Li) wrote:
> On Tue, Nov 16, 2010 at 1:11 PM, Shawn H Corey <[email protected]> wrote:
>
> > On 10-11-16 04:07 PM, Vincent Li wrote:
>
> >> My aim is to remove specific profile.*{} block from that file
>
> > Yes, but if the {} blocks are nestable, then you can't do it with regular
> > expressions alone.
>
> right, I only have one level nested {}, any tips? when file is slurped
> to file mode, the nested {} will look like 'profile foo { foo { foo} foo
> }profile bar { bar { bar } bar }profile goo { goo } ', I
>
> tried regex:
>
> {.*?(?:{.*?})?.*?}
>
> but it is not working.
If the file is strictly formatted and there's no interior
nesting, you could even avoid slurping. Example:
perl -nle 'print unless /^vlan vlan10 {$/ .. /^}$/'
infile > file_with_no_vlan10
See: perldoc perlop (range operator "flip-flop")
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Charles DeRykus
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