It is good that you have shown some code. However, I am still not certain what you are trying to accomplish.

If you are trying to delete lines within left and right curly braces, {}, then you could use Range Operators: 

#!/usr/bin/env perl

use warnings;
use strict;

while (<DATA>) {
    unless (/{/ .. /}/) {print}
}

__DATA__
keep
{
junk
junk2
junk3
}
keep
keep2
keep3
{ junk4 }
keep4

[download]
This will delete all the text within the curly braces (the "junk" text), and will preserve all the text outside the braces (the "keep" text). The output of this script is: 
keep
keep1
keep2
keep3
keep4

[download]
If this does not help, perhaps you could provide a small sample of your input "hello" file, and show which line you want to delete from that file.

In reply to Re: Deleting lines from named.conf file by toolic
in thread Deleting lines from named.conf file by firewall00

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