Linux环境准备

#!/bin/bash
#----------------------------------------------------------#
# Date    : 2018-xx-xx                                     #
# Author  : Created by zhouwanchun.                        #
# Wechat  : loveoracle11g                                  #
# Function: This scripts function is install linux OS.     #
# Version : 1.1                                            #
#----------------------------------------------------------#

# 查看系统版本
cat /etc/redhat-release

# 查看系统内核
uname -rm

# 关闭防火墙
systemctl stop firewalld
systemctl disable firewalld

# 关闭SELinux
sed -i ‘s#SELINUX=enforcing#SELINUX=disabled#g‘ /etc/sysconfig/selinux
sed -i ‘s#SELINUX=enforcing#SELINUX=disabled#g‘ /etc/selinux/config

# 确保NetworkManager服务是开着的
systemctl stop NetworkManager
systemctl disable NetworkManager

# 修改Linux终端提示符颜色
# echo "PS1=‘[\[\033[1;31m\]\u\[\033[0m\]@\[\033[1;32m\]\h \[\033[1;36m\]\w\[\033[0m\]]\\$ ‘" >> ~/.bashrc
echo "PS1=‘[\[\033[1;32m\]\u\[\033[0m\]@\[\033[1;35m\]\h \[\033[1;36m\]\w\[\033[0m\]]\\$ ‘" >> ~/.bashrc
source ~/.bashrc

# 设置主机名
cat > /etc/hostname <<EOF
mysql-db01
EOF

# 主机名解析
cat >> /etc/hosts <<EOF
10.0.0.11   mysql-db01
10.0.0.12   mysql-db02
10.0.0.13   mysql-db03
EOF

# 连接镜像并挂载
mkdir /media/cdrom
mount /dev/cdrom /media/cdrom
df -Th

# 配置本地yum仓库
cd /etc/yum.repos.d/
ls -l
mkdir repo
mv CentOS-* repo/
ls -l

cat >> local.repo <<EOF
[base]
name=CentOS-localhost-iso
baseurl=file:///media/cdrom
enabled=1
gpgcheck=0
EOF
cd ~

# 查看yum仓库
yum repolist all

# 刷包
yum list all | wc -l

# 安装Linux常用的rpm工具包
yum -y install bash-completion bash-completion-extras vim vim-enhanced net-tools wget screen mtr nc nmap ntp ntpdate tree lrzsz lsof gcc gcc-c++ glibc make zip unzip dos2unix sysstat telnet tcpdump htop iftop iotop nethogs psmisc iptraf dstat OpenIPMI-tools openssl-devel zlib-devel ncurses-devel libaio-devel bind-utils xorg-x11-server-utils

# 配置网卡网络
cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0.bak
cp /etc/sysconfig/network-scripts/ifcfg-eth1 /etc/sysconfig/network-scripts/ifcfg-eth1.bak

cat > /etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF
TYPE=Ethernet
BOOTPROTO=static
NAME=eth0
DEVICE=eth0
ONBOOT=yes

DEFROUTE=yes
PEERDNS=no
PEERROUTES=yes
IPV4_FAILURE_FATAL=no

IPADDR=10.0.0.11
NETMASK=255.255.255.0
GATEWAY=10.0.0.2
EOF

cat > /etc/sysconfig/network-scripts/ifcfg-eth1 <<EOF
TYPE=Ethernet
BOOTPROTO=static
NAME=eth1
DEVICE=eth1
ONBOOT=yes

IPADDR=192.168.10.11
NETMASK=255.255.255.0
EOF

# 重启网卡
//etc/init.d/network restart

# 查看网络
ifconfig

# 查看DNS客户端配置文件
cat >> /etc/resolv.conf <<EOF
nameserver 10.0.0.2
nameserver 223.5.5.5
nameserver 223.6.6.6
EOF

# 使用dig验证
dig www.taobao.com +short

# 测试网络能不能和外网ping通
ping -c 4 www.baidu.com

# 创建常用目录
mkdir -p /disk/{soft,tools}
chmod -R 777 /disk
mkdir /app
mkdir /data
mkdir /backup

# 配置网络阿里云yum源
umount /dev/cdrom /media/cdrom
ping -c 4 opsx.alibaba.com
cd /etc/yum.repos.d/
mv local.repo local.repo.bak
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
sed -i ‘s#\$releasever#7#g‘ /etc/yum.repos.d/CentOS-Base.repo
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
ls -l
cd ~
yum clean all
yum makecache
yum repolist all
yum list all | wc -l
# yum -y update

# example.sh
touch /root/example.sh
cat > /root/example.sh <<EOF
#!/bin/bash
#----------------------------------------------------------#
# Date    : xxxx-xx-xx                                     #
# Author  : Created by zhouwanchun.                        #
# Wechat  : loveoracle11g                                  #
# Function: This scripts function is ...                   #
# Version : 1.1                                            #
#----------------------------------------------------------#
EOF

# 清空命令历史
> ~/.bash_history 
history -c

# 重启
reboot

# 完成
#----------------------------------------------------------#
# Date    : 2018-xx-xx                                     #
# Author  : Created by zhouwanchun.                        #
# Wechat  : loveoracle11g                                  #
# Function: This scripts function is install linux OS.     #
# Version : 1.1                                            #
#----------------------------------------------------------#