Shell获取IP
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intra ip
[evan@prod-core-mongo ~]$ sudo ip a | grep eth0| awk '{print $2}'
eth0:
172.16.0.40/20
[evan@prod-core-mongo ~]$ sudo ip a | grep eth0| awk '{print $2}'|sed -n '2p'
172.16.0.40/20
[evan@prod-core-mongo ~]$ sudo ip a | grep eth0| awk '{print $2}'|sed -n '2p'|awk -F'/' '{print $1}'
172.16.0.40
