shell 脚本学习-回显服务器ip

touch app.sh

vi app.sh

#!/bin/bash
function ipaddr() {
ip=`ip addr|grep -v '\(docker\|br-\|kube\|nodelocaldns\|tunl\)'|grep -E '([0-9]{1,3}[.]){3}[0-9]{1,3}'|grep inet|grep global|grep -v virbr|awk '{print $2}'|head -1` && ip=${ip%/*}
echo $ip
}

function main() {
ipaddr
}
main $p

:wq

chmod +x app.sh

./app.sh