Shell-----centos系统初始化脚本配置

系统初始化脚本

#!/usr/bin/bash # DESC：system init # Usage: sh system_init.sh hostname($1) hostip($2) a () { # 主机名设置 # 在main函数中以$1传入 hostnamectl set-hostname $1 echo "主机名已设置为：$(hostname)" } b () { # IP地址设置 # main函数传入的是$2,但是b函数接收后是以$1接收的。 cat > /etc/sysconfig/network-scripts/ifcfg-ens33 <<EOF DEVICE=ens33 TYPE=Ethernet ONBOOT=yes BOOTPROTO=static IPADDR=192.168.216.xxx NETMASK=255.255.255.0 GATEWAY=192.168.216.2 DNS1=119.29.29.29 EOF sed -i "/^IPADDR=/s/=.*/=$1/" /etc/sysconfig/network-scripts/ifcfg-ens33 # systemctl restart network &> /dev/null ip=`cat /etc/sysconfig/network-scripts/ifcfg-ens33 |grep IPADDR` echo "IP地址已设置为:$ip" } c () { # 关闭firewalld systemctl disable firewalld && systemctl stop firewalld firewall-cmd --state &> /dev/null if [ $? -eq 252 ];then echo "firewalld已关闭" fi } d () { # 关闭SELINUX if [ -f /etc/selinux/config ];then sed -i.bak -r '/^SELINUX=/c\SELINUX=disabled' /etc/selinux/config fi echo "SELINUX已关闭，重启操作系统后生效,请稍后重启操作系统。" } e () { # 清华大学开源软件镜像站YUM源配置 #yum.repos.d backup mkdir -p /root/yum-back mv /etc/yum.repos.d/* /root/yum-back/ #make tuna.repo cat > /etc/yum.repos.d/tuna.repo <<EOF [base] name=CentOS-\$releasever - Base baseurl=http://mirrors.tuna.tsinghua.edu.cn/centos/\$releasever/os/\$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 #released updates [updates] name=CentOS-\$releasever - Updates baseurl=http://mirrors.tuna.tsinghua.edu.cn/centos/\$releasever/updates/\$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 #additional packages that may be useful [extras] name=CentOS-\$releasever - Extras baseurl=http://mirrors.tuna.tsinghua.edu.cn/centos/\$releasever/extras/\$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-\$releasever - Plus baseurl=http://mirrors.tuna.tsinghua.edu.cn/centos/\$releasever/centosplus/\$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 EOF #remove cache rm -rf /var/cache/yum &> /dev/null yum clean all &> /dev/null echo "清华大学开源软件镜像站YUM源已配置" } f () { # 网络时钟源配置 if [ -f /etc/ntp.conf ];then sed -i.bak -r '/^server [1-3]/d' /etc/ntp.conf sed -i -r '/^server/c\server time1.aliyun.com' /etc/ntp.conf fi echo "网络时钟源已配置" } g () { # 系统更新 yum update echo "系统软件已更新" } main () { cat << EOF ==========Linux System INIT========== A|a)SET HOSTNAME B|b)SET IP ADDRESS C|c)DISABLE FIREWALLD D|d)DISABLE SELINUX E|e)SET YUM REPO F|f)SET NTP SOURCE G|g)UPDTAE SYSTEM ===================================== EOF read -p "请选择相应选项完成系统初始化[输入Q退出本程序]：" choice while true do case $choice in A|a) clear a $1 sleep 2 ;; B|b) clear b $2 sleep 2 ;; C|c) clear c sleep 2 ;; D|d) clear d sleep 2 ;; E|e) clear e sleep 2 ;; F|f) clear f sleep 2 ;; G|g) clear g sleep 2 ;; Q|q) echo "退出系统初始化程序。" sleep 2 break ;; *) echo -e "\t\t\t\033[31m 请按菜单选择 \033[0m" esac cat << EOF ==========Linux System INIT========== A|a)SET HOSTNAME B|b)SET IP ADDRESS C|c)DISABLE FIREWALLD D|d)DISABLE SELINUX E|e)SET YUM REPO F|f)SET NTP SOURCE G|g)UPDTAE SYSTEM ===================================== EOF read -p "请选择相应选项完成系统初始化[输入Q退出本程序]：" choice done } # callable main $1 $2 脚本执行说明 :

[root@localhost ~]# sh system_init.sh webhost 192.168.216.100 Linux System INIT A|a)SET HOSTNAME B|b)SET IP ADDRESS C|c)DISABLE FIREWALLD D|d)DISABLE SELINUX E|e)SET YUM REPO F|f)SET NTP SOURCE G|g)UPDTAE SYSTEM ===================================== 请选择相应选项完成系统初始化[输入Q退出本程序]：