Linux---常用shell脚本

目录

 一.网络服务

开启network服务

 网口IP配置

 聚合口配置

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前言

秋招拿到了科大讯飞的offer，可是由于某些原因无法完成三方签署，心情还是比较失落的，或许写一篇技术博客，活跃一下大脑思维也是一种不错的放松方式。

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 一.网络服务

开启network服务

此脚本用于关闭NetworkManger服务重启network防止服务冲突导致IP配置无法生效

#!/bin/bash# 获取 NetworkManager 的 Active 状态（去除括号）
status=$(systemctl status NetworkManager | grep 'Active:' | awk '{print $3}' | tr -d '()')# 检查状态是否不是 dead
if [ "$status" != "dead" ]; thenecho "NetworkManager is not dead. Stopping NetworkManager and restarting network..."# 停止 NetworkManagersystemctl stop NetworkManager# 检查 systemctl stop 的退出状态if [ $? -ne 0 ]; thenecho "Failed to stop NetworkManager."exit 1fi# 重启 network 服务（注意：这个服务名可能因系统而异，例如在某些系统上可能是 'networking'）systemctl restart network# 检查 systemctl restart 的退出状态if [ $? -ne 0 ]; thenecho "Failed to restart network service."exit 1fiecho "NetworkManager stopped and network service restarted successfully."
elseecho "NetworkManager

 网口IP配置

此脚本用于配置网口IP地址，简化命令行操作

#!/bin/bash
interfaces=$(ip a | awk '/^[0-9]: / {printf "%s ", $2} END {print ""}')
echo "可选择网卡如下：$interfaces"
read -p "请输入网口：" eth
read -p "请输入IP：" eth_ip
read -p "请输入mask:" eth_mask
echo "IPADDR=$eth_ip" >> /etc/sysconfig/network-scripts/ifcfg-$eth
echo "NETMASK=$eth_mask" >> /etc/sysconfig/network-scripts/ifcfg-$eth
echo "正在重启网络"
systemctl restart network
echo "重启成功"

 聚合口配置

此脚本用于自动配置聚合口

#!/bin/bash
status=$(systemctl status NetworkManager | grep 'Active:' | awk '{print $3}' | tr -d '()')
if [ "$status" != "dead" ]
thenecho "NetworkManager服务已开启"
else# 开启 NetworkManagerecho "正在重启NetworkManager"systemctl restart NetworkManagerecho "重启成功"
fi# 检查是否存在 bond0 连接
if nmcli connection show | grep -q 'bond0'; thenecho "Warning: 'bond0' connection already exists."exit 1  # 或者执行其他适当的操作，例如删除现有连接再重新创建
fiif [ $# -ne 3 ]; thenecho "Usage: $0 <ip_address> <interface1> <interface2>"exit 1
fiip_address=$1
interface1=$2
interface2=$3nmcli connection add type bond con-name bond0 ifname bond0 bond.options "mode=active-backup,miimon=100"
nmcli connection add type ethernet slave-type bond con-name bond0-port1 ifname ${interface1} master bond0
nmcli connection add type ethernet slave-type bond con-name bond0-port2 ifname ${interface2} master bond0
nmcli connection modify bond0 ipv4.addresses ${ip_address}/24 ipv4.method manual  connection.autoconnect yes
nmcli connection modify bond0 connection.autoconnect-slaves 1
nmcli connection up bond0
echo "Bond connection created successfully."

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总结