腳本任務 1，判斷網卡配置文件名稱為eth*或者是em* ，如dell服務器網卡CentOS5為eth*，而CentOS6為em*。 2，存在幾個網卡就復制幾個原網卡配置文件做為橋配置文件，n的設置的數量是4，如果超過4網卡則設置更高值，原配置文件是DHCP的改為static，用.*匹配行是存在CentOS5和6參數有引號的問題。 3, 生成虛擬機橋借口br*并一一對應，如br0對應eth0，br1對應eth1等等，并重啟網絡。 ? ? #! /bin/sh mypath="/etc/sysconfig/network-scripts" for((n=0;n<=4;n++))doif [ -f "$mypath/ifcfg-eth$n" ]thensed -i "s/^ONBOOT.*/ONBOOT=yes/" $mypath/ifcfg-eth$nsed -i "s/^BOOTPROTO.*/BOOTPROTO=static/" $mypath/ifcfg-eth$ncp -a $mypath/ifcfg-eth$n $mypath/ifcfg-br$nsed -i "/^HWADDR.*/d" $mypath/ifcfg-br$nsed -i "s/^DEVICE.*/DEVICE=br"$n"/" $mypath/ifcfg-br$nsed -i "s/^TYPE.*/TYPE=Bridge/" $mypath/ifcfg-br$necho "BRIDGE=br$n">>$mypath/ifcfg-eth$necho "The device br$n<---->eth$n is add success !"elseecho "The device eth$n not exist!"fiif [ -f "$mypath/ifcfg-em$n" ]thensed -i "s/^ONBOOT.*/ONBOOT=yes/" $mypath/ifcfg-em$nsed -i "s/^BOOTPROTO.*/BOOTPROTO=static/" $mypath/ifcfg-em$ncp -a $mypath/ifcfg-em$n $mypath/ifcfg-br$nsed -i "/^HWADDR.*/d" $mypath/ifcfg-br$nsed -i "s/^DEVICE.*/DEVICE=br"$n"/" $mypath/ifcfg-br$nsed -i "s/^TYPE.*/TYPE=Bridge/" $mypath/ifcfg-br$necho "BRIDGE=br$n">>$mypath/ifcfg-em$necho "The device br$n<---->em$n is add success !"elseecho "The device em$n not exist!" fi done /etc/init.d/network restart

轉載于:https://blog.51cto.com/songxj/1070725

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