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#!/bin/sh#-x 会回显命令执行的语句和参数set -x#进入到相对路径执行命令，并通过cd -f返回cd ../../utils. ./sys_info.shcd -#Test user id#检查是否是root用户if [ `whoami` != 'root' ]; then    echo " You must be the superuser to run this script" >&2    exit 1fi#distro=`cat /etc/redhat-release | cut -b 1-6`#不同的发行版包名会有所不同case $distro in    "centos")        yum install dhclient.aarch64 -y        print_info $? install-package        ;;    "ubuntu")        apt-get install dhclient -y        print_info $? install-package        ;;esac#得到ip 地址ROUTE_ADDR=$(ip route list |grep default |awk '{print $3}' |head -1)#执行dhclient 命令，并ping 前面得到的ip 地址，看是否可以ping的通dhclient -v -r eth0ping -c 5 ${ROUTE_ADDR}print_info $? delete-ipdhclient -v eth0print_info $? acquiring-ipping -c 5 ${ROUTE_ADDR} 2>&1 |tee dhcp.log#检查ping的log中是否包含64 bytes，这个字符串str=`grep -Po "64 bytes" dhcp.log`TCID="dhcp test"#检测到特定字符串的话，说明dhclient 命令执行成功if [ "$str" != "" ];then    lava-test-case $TCID --result passelse    lava-test-case $TCID --result failfi#测试完成后，根据不同的发行版删除包case $distro in    "ubuntu")        apt-get remove dhclient -y        print_info $? remove-package        ;;    "centos")        yum remove dhclient -y        print_info $? remove-package        ;;esac

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