regex - grep mac地址-连续2行

我的文件由扫描结果组成。每个结果可以有4-20行
我只想筛选成功的mac地址（通过扫描）
我的文件：

FAIL user1 OS-Anti-Virus-Check     Mac OS X 10.10.5

        PASSED Operating-System :: OS X 10.10 Yosemite
        PASSED Operating-System :: OS X 10.10 Yosemite Update
        FAILED Anti-Virus :: Sophos
        E0:AC:CB:82:C3:F2 - en0
FAIL user2 OS-Anti-Virus-Check     Windows Vista (TM) Home Premium 6.0 Service Pack 2

        PASSED Operating-System :: Windows Vista
        PASSED Operating-System :: Vista Service Pack
        PASSED Operating-System :: Windows Vista Edition
        PASSED Operating-System :: Vista Critical and Security Updates
        PASSED Operating-System :: Windows Vista AutoUpdates Label
        FAILED Anti-Spyware :: Microsoft Windows Defender
        FAILED Anti-Virus :: Microsoft Windows Defender
        00:23:4D:E2:8E:03 - Atheros AR928x Wireless Network Adapter
        00:1D:BA:AF:D4:35 - Marvell Yukon 88E8055 PCI-E Gigabit Ethernet Controller
PASS user3 OS-Anti-Virus-Check     Windows 8 China 6.2

        PASSED Anti-Spyware :: Avast! Premier
        PASSED Anti-Virus :: Avast! Premier
        PASSED Anti-Virus :: Avast! Premier Definitions
        PASSED Operating-System :: Windows 8 x64
        PASSED Operating-System :: Windows 8 x64 Service Pack
        PASSED Operating-System :: Windows 8 x64 Edition
        PASSED Operating-System :: Windows 8 x64 Critical and Security Updates
        PASSED Operating-System :: Windows 8 x64 AutoUpdates Label
        28:D2:44:D2:7A:2E - Intel(R) Ethernet Connection I218-V
        7C:7A:91:73:88:09 - Intel(R) Wireless-N 7260
        7C:7A:91:73:88:0A - Microsoft Wi-Fi Direct ����������
        7C:7A:91:73:88:0D - Bluetooth �?(����������
PASS user4 OS-Anti-Virus-Check     Mac OS X 10.10.5

        PASSED Anti-Virus :: Sophos
        PASSED Anti-Virus :: Sophos Definitions
        PASSED Operating-System :: OS X 10.10 Yosemite
        PASSED Operating-System :: OS X 10.10 Yosemite Update
        E0:AC:CB:82:C3:F2 - en0

我想提取通过扫描的mac地址列表。
所以举个例子
如果行包含“passed”，下一行或2包含mac地址…打印MAC地址。
如果有人能指点我正确的方向，我将不胜感激…

最佳答案

您可以使用grep两次：
第一次识别“通过”行，然后是mac地址
第二次从结果中提取mac地址
示例：

grep -Pzo 'PASSED.*?\s+([0-9A-F]{2}(\:[0-9A-F]{2}){5})' d.txt | grep -Po '[0-9A-F]{2}(\:[0-9A-F]{2}){5}'

您可以使用以下命令检查接下来的两行（我仍然找不到方法使其对这两种情况都有效）：

grep -Pzo 'PASSED.*?(\s+([0-9A-F]{2}(\:[0-9A-F]{2}){5}).*?){2}' 3.txt | grep -Po '[0-9A-F]{2}(\:[0-9A-F]{2}){5}'

关于regex - grep mac地址-连续2行，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/34922105/