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Grep mac address separated by period

原文 2021-09-20 03:45:30 8 1 regex/ shell/ grep

I want to grep mac address separated by a period, but I don't know how to grep 4ddd.8a5b.080c VLAN 14 in this line:

For example:

Internet  192.168.15.24     0         4ddd.8a5b.080c  arpa   VLAN 14

1 answers

在提取所需的列之前，此sed将首先匹配VLAN 14

sed '/VLAN 14/ {s/.*0         \(.*\) arpa \(.*\)/\1\2/}' input_file

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