CentOS设置IP和hostname的shell脚本

最新推荐文章于 2024-09-18 21:42:47 发布

转载最新推荐文章于 2024-09-18 21:42:47 发布 · 435 阅读

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原文链接：https://my.oschina.net/idoop/blog/1505414

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#shell #运维

本文提供了一个用于在Linux系统中设置静态IP地址的bash脚本。该脚本引导用户输入必要的网络参数，并根据这些参数修改网络配置文件，实现网络接口的静态IP设置。

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把ens32替换为当前的网卡名称即可.

#!/bin/bash
if [ "$(whoami)" == "root" ];then
echo "当前执行权限: root"
else
echo "当前用户:" $(whoami)
echo "请使用管理员权限执行脚本."
exit
fi

while read -p "是否设置本机静态IP,退出输入:n,设置IP输入:y  [y|n]" yn
do
        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:192.168.1.1):" 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:-"192.168.1.1"}
                                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 [[ ${yn} == [Yy] ]];then
                                        sed -i 's/^ONBOOT.*$/ONBOOT=yes/g' /etc/sysconfig/network-scripts/ifcfg-ens32
                                        sed -i 's/^BOOTPROTO.*$/BOOTPROTO=static/g' /etc/sysconfig/network-scripts/ifcfg-ens32
                                        echo -e "IPADDR=${ip}\nGATEWAY=${gateway:-"192.168.1.1"}\nNETMASK=${mask:-"255.255.255.0"}\nDNS1=${dns:-"192.168.1.1"}" >> /etc/sysconfig/network-scripts/ifcfg-ens32
                                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
        fi
done

转载于:https://my.oschina.net/idoop/blog/1505414