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Change SOA Serial In DNS Hosts File Config
# bump_serial.sh
#!/bin/bash
perl -i.bak -pe 'BEGIN {chomp ($now=qx/date +%Y%m%d/)};
/(\d{8})(\d{2})/ and do {
$serial = ($1 eq $now ? $2+1 : 0);
s/\d{8}(\d{2})/sprintf "%8d%02d",$now,$serial/e;
}' name.hosts
