hello,monks i am trying to remove matched and ranged lines from a file what first come to my mind is range operator like .. ... the file is like 
define host{
    use windows-server
    host_name serverA
    hostgroups 060202
    alias 060202
    contact_groups yu
    address 192.168.1.1
}
define host{
    use windows-server
    host_name serverA
    hostgroups 060202
    alias 060202
    contact_groups yu
    address 192.168.1.11
}

define host{
    use windows-server
    host_name serverA
    hostgroups 060202
    alias 060202
    contact_groups yu
    address 192.168.1.21
}
define host{
    use windows-server
    host_name serverA
    hostgroups 060202
    alias 060202
    contact_groups yu
    address 192.168.1.1
}

[download]
this is the file. i want to remove the whole block like 
define host{
    use windows-server
    host_name serverA
    hostgroups 060202
    alias 060202
    contact_groups yu
    address 192.168.1.1
}

[download]
so i wrote a scripts like 
open(NAG,"nagios") or dir $!;


my $start = qr/^define/;
my $end = qr/^\}$/;

my @array;
while (<NAG>) {
    if (/$start/ .. /$end/) {
        push @array, $_;
    }
}

foreach (@array) {
    if (/192.168.1.1/) {
        print $_;
    }
}

[download]
it just print one line which matchs 192.168.1.1.... so i recognized $_ in while (<NAG>) is just a line... i cant use range operator here... are there any way to reach the goal?

In reply to how to remove matched multi lines by cxfcxf

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