以前有段时间经常新配虚拟机搭环境,于是写了个shell脚本提示性输入配置，今天翻到了发上来.

#!/bin/bash# By Swire "idoop@msn.cn"if [[ $(whoami) == "root" ]];thenecho "当前执行权限: root"elseecho "当前用户:" $(whoami)echo "请使用管理员权限执行脚本."exitfiwhile read -p "是否设置本机静态IP,退出输入:n,设置IP输入:y  [y|n]" yndo	if [[ ${yn} == [Nn] ]];then		exit	elif [[ ${yn} == [Yy] ]];then		while read -p "输入本机IP地址,如192.168.1.9 :" ip		do			read -p "将设置ip地址为${ip},请确认[y|n]:" yn			if [[ ${yn} == [Yy] ]];then				read -p "输入DNS, 如:119.29.29.29 (Default:119.29.29.29):" dns				read -p "输入网关,如192.168.1.1 (Default:192.168.1.1):" gateway				read -p "输入掩码,如255.255.255.0 (Default:255.255.255.0):" mask								echo "IP: "${ip}				echo "DNS:"${dns:-"119.29.29.29"}				echo "网关:"${gateway:-"192.168.1.1"}				echo "掩码:"${mask:-"255.255.255.0"}				read -p "以上配置是否正确？若是写错请按n重新配置. 请确认[y|n]:" yn				if [[ ${yn} == [Yy] ]];then					#设置DNS					sed -i "/exit/i\nameserver ${dns:-"119.29.29.29"}" /etc/rc.local					sed -i "/127.0.0.1/i\127.0.0.1 ${ip//./-}" /etc/hosts					#重写interfaces设置IP					echo 'source /etc/network/interfaces.d/*' > /etc/network/interfaces					echo 'auto lo' >> /etc/network/interfaces					echo 'iface lo inet loopback' >> /etc/network/interfaces					echo 'auto ens160' >> /etc/network/interfaces					echo 'iface ens160 inet static' >> /etc/network/interfaces					echo 'address '${ip} >> /etc/network/interfaces					echo 'gateway '${gateway:-"192.168.1.1"} >> /etc/network/interfaces					echo 'netmask '${mask:-"255.255.255.0"} >> /etc/network/interfaces				else					continue				fi			else				continue			fi			read -p "是否将${ip//./-}作为hostname?请确认[y|n]:" yn			if [[ ${yn} == [Yy] ]];then				hostnamectl set-hostname ${ip//./-}			else 				read -p "请手动输入hostname: " hname				read -p '确认以"'${hname}'"为hostname [y|n]:' yn				if [[ ${yn} == [Yy] ]];then					hostnamectl set-hostname ${hname}				fi			fi			read -p '需要重启生效,是否重启 [y|n]: ' yn			if [[ ${yn} == [Yy] ]];then				reboot			fi			exit		done	fidone