更新CentOs的Ip地址和主机名的脚本

自己写的，更新CentOs的Ip地址和主机名的脚本，还有些Bug哦。

脚本

#!/bin/sh
echo "####### Begin configure new environment #######"

if [ $# != 1 ];then
  echo "usage:sh config4new.sh 192.168.8.8"
  exit 1
fi

HOSTIP=$1

HOSTNAME_PRE=compute-
HOSTNAME=${HOSTNAME_PRE}${HOSTIP//\./\-}


sed -i -e " s%SELINUX=permissive%SELINUX=permissive%g" /etc/selinux/config
sed -i '3,10d' /etc/hosts
echo "127.0.0.1   $HOSTNAME">>/etc/hosts

sed -i -e " s%HOSTNAME=.*%HOSTNAME=$HOSTNAME%g" /etc/sysconfig/network

sed -i -e " s%IPADDR=.*%IPADDR=$HOSTIP%g" /etc/sysconfig/network-scripts/ifcfg-eth0

rm -rf /etc/udev/rules.d/70-persistent-net.rules
echo "==>success configure new environment"

有机会在修改。