1.修改網卡地址軟連接

ln -s /etc/sysconfig/network-scripts/ifcfg-eth0 /root/network

使用network軟連接到網卡信息配置文件上，方便直接修改網卡信息

使用的時候直接邊界network軟連接

2.主機名修改

編寫腳本名稱hostname.sh，方便直接修改主機名

#!/bin/bash
# hostname.sh
hostnamectl --static sethostname $1

3.更新yum腳本

編寫腳本，運行直接更新為阿裏雲yum源

#!/bin/bash
#change yum source 
#name=yum.sh

echo "========start============="
cd /etc/yum.repos.d/

echo "====dowload tools========="
yum install -y net-tools vim wget


echo "====backup repo==========="
mv CentOS-Base.repo CentOS-Base.repo.bak


echo "====dowload aliyum-repo===="
wget http://mirrors.aliyun.com/repo/Centos-7.repo


echo "====upgrade aliyum-repo===="
mv Centos-7.repo CentOS-Base.repo



echo "====upgrade yum============"
yum clean all
ange yum source

echo "========start============="
cd /etc/yum.repos.d/

echo "====dowload tools========="
yum install -y net-tools vim wget


echo "====backup repo==========="
mv CentOS-Base.repo CentOS-Base.repo.bak


echo "====dowload aliyum-repo===="
wget http://mirrors.aliyun.com/repo/Centos-7.repo


echo "====upgrade aliyum-repo===="
mv Centos-7.repo CentOS-Base.repo



echo "====upgrade yum============"
yum clean all
yum makecache

yum update -y
echo "========start============="
cd /etc/yum.repos.d/

echo "====dowload tools========="
yum install -y net-tools vim wget


echo "====backup repo==========="
mv CentOS-Base.repo CentOS-Base.repo.bak


echo "====dowload aliyum-repo===="
wget http://mirrors.aliyun.com/repo/Centos-7.repo


echo "====upgrade aliyum-repo===="
mv Centos-7.repo CentOS-Base.repo

echo "====upgrade yum============"
yum clean all
yum makecache
yum update -y
yum makecache
yum makecache
yum update -y

cd ~

echo "=========finish============"

centos7上一些初始簡單配置腳本