使用 awk 处理 nmap 扫描结果，求出存活主机IP

baitai

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在使用 nmap 扫描时，得到如下结果： 结果1： Interesting ports on 172.22.43.23: PORT   STATE SERVICE 22/tcp open  ssh Interesting ports on 172.22.43.24: PORT   STATE SERVICE 22/tcp open  ssh Interesting ports on 172.22.43.25: PORT   STATE SERVICE 22/tcp open  ssh Interesting ports on 172.22.43.250: PORT   STATE    SERVICE 22/tcp filtered ssh Interesting ports on 172.22.43.251: PORT   STATE SERVICE 22/tcp open  ssh Nmap run completed -- 256 IP addresses (17 hosts up) scanned in 2.375 seconds 要求：如果 扫描 22 端口为 open 则打印 所扫IP地址 (如：172.22.43.251 的 22/tcp 为 open 则打印 这个 IP ) 扫描结果2： Interesting ports on 172.22.43.251: PORT     STATE  SERVICE 5911/tcp closed unknown 5912/tcp closed unknown 5913/tcp closed unknown 5914/tcp closed unknown 5915/tcp closed unknown 5916/tcp closed unknown 5917/tcp closed unknown 5918/tcp closed unknown 5919/tcp closed unknown 5920/tcp closed unknown Interesting ports on 172.22.43.252: PORT     STATE  SERVICE 5911/tcp closed unknown 5912/tcp closed unknown 5913/tcp closed unknown 5914/tcp closed unknown 5915/tcp closed unknown 5916/tcp closed unknown 5917/tcp closed unknown 5918/tcp closed unknown 5919/tcp closed unknown 5920/tcp closed unknown Interesting ports on 172.22.43.254: PORT     STATE  SERVICE 5911/tcp closed unknown 5912/tcp open unknown 5913/tcp closed unknown 5914/tcp closed unknown 5915/tcp closed unknown 5916/tcp closed unknown 5917/tcp closed unknown 5918/tcp closed unknown 5919/tcp closed unknown 5920/tcp closed unknown Nmap run completed -- 256 IP addresses (17 hosts up) scanned in 3.446 seconds 我在扫描 5911-5920 这10个端口时只要有一个端口为open，就打印这个IP地址 (如：172.22.43.254 的 5912/tcp 端口为 open的，就打印 172.22.43.254 这个IP) 不清楚这个 awk 应怎么写，求助!