Hi All,
Whats the easiest way to remove duplicate entries from an array. Below is a
script that removes ip addresses from a log file and adds them to an array.
I then check the array to see if the value is already present and if it is i
set a flag($exists) and then push that value into the array if $exists is
false.
Is there an easier way?
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open(ADD_FIRE,"+</var/log/add_firewall") || die "Unable to open file\n";
open(LOG,"/var/log/testlog") || die "Unable to open file\n";
while(<LOG>) {
chomp;
$exists = 0;
if(/\[(\d+\.\d+\.\d+\.\d+)\].+reject=550/) {
$address = $1;
foreach(@ipadds) {
$exists = 1 if($_ eq $address);
}
push(@ipadds,$address) if !$exists;
}
}
close(LOG);
close(ADD_FIRE);
foreach(@ipadds) {
print "$_\n";
}
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