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目录
最小化安装Linux系统初始化脚本
注：此脚本适用于centos 7/8、Ubuntu1804，具体需要根据实际情况进行测试调整。
此脚本包含的功能：
- 允许 root 用户使用 ssh 登录
- 关闭 selinux
- 关闭防火墙
- 设置 ps1
- 设置默认编辑器为 vim
- 自定义 vim
- 自定义历史命令
- 修改内核参数
- 设置资源限制
- 修改软件源
- 安装常用包
- 设置时间同步
- 修改网卡为传统命令格式
- 设置IP地址等
[code][root@centos8 ~]# cat init_v1.sh#!/bin/bash##**************************************************#Author: Xan_Yum#QQ: 7993167#Email: waluna@qq.com#Version: 1.0#Date: 2021-11-03#FileName: init_v1.sh#Description: system init#URL: https://blog.waluna.top#Copyroght (C): 2021 ALL rights reserved#**************************************************OS=`awk -F'"' '/PRETTY_NAME/{print $2}' /etc/os-release|tr ' ' '-'`#1set_ssh () { if [[ $OS == Ubuntu-18.04* ]];then sed -i.bak '/#PermitRootLogin/a PermitRootLogin yes' /etc/ssh/sshd_config systemctl restart sshd fi echo -e "\e[32;1mPermit root login set complete\e[0m"}#2disable_selinux () { if [[ $OS == CentOS* ]];then sed -i.bak 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config fi echo -e "\e[32;1mSElinux already disabled,Restart to take effect\e[0m"}#3disbale_firewall () { systemctl disable --now firewalld &> /dev/null echo -e "\e[32;1mFirewall already disabled\e[0m"}#4set_ps1 () { if [[ $OS == CentOS* ]];then echo "PS1='\[\e[1;36m\][\u@\h \W]\\$ \[\e[0m\]'" >> /etc/profile.d/env.sh . /etc/profile.d/env.sh elif [[ $OS == Ubuntu* ]];then echo 'PS1="\[\e[1;32m\][${debian_chroot:+($debian_chroot)}\u@\h \w]\\$ \[\e[0m\]"' >> .bashrc . .bashrc fi echo -e "\e[32;1mPS1 already modify,Please login again\e[0m"}#5set_default_text_editor_vim () { echo "export EDITOR=vim" >> /etc/profile.d/env.sh . /etc/profile.d/env.sh echo -e "\e[32;1mdefault_text_editor already modify vim,Please login again\e[0m"}#6set_vim () {cat > ~/.vimrc /etc/profile.d/env.sh echo -e "\e[32;1mHistory modify\e[0m"}#8modify_kernel_parameters () { mv /etc/sysctl.conf{,.bak}cat > /etc/sysctl.conf /etc/security/limits.conf /var/spool/cron/root systemctl restart crond elif [[ $OS == CentOS-Linux-8* ]];then sed -i.bak '/^pool /c pool time1.aliyun.com iburst' /etc/chrony.conf systemctl restart chronyd && systemctl enable chronyd echo '*/5 * * * * chronyc -a makestep &> /dev/null && hwclock -w' >> /var/spool/cron/root systemctl restart crond elif [[ $OS == Ubuntu-18.04* ]];then echo '*/5 * * * * ntpdate time1.aliyun.com &> /dev/null && hwclock -w' >> /var/spool/cron/root systemctl restart cron fi echo -e "\e[32;1mTime sync complete\e[0m"}#13set_eth () { if [[ $OS == CentOS* ]];then sed -i.bak '/GRUB_CMDLINE_LINUX/s#"$# net.ifnames=0"#' /etc/default/grub grub2-mkconfig -o /boot/grub2/grub.cfg &> /dev/null elif [[ $OS == Ubuntu-18.04* ]];then sed -i.bak '/GRUB_CMDLINE_LINUX/s#"$#net.ifnames=0"#' /etc/default/grub grub-mkconfig -o /boot/grub/grub.cfg &> /dev/null fi echo -e "\e[32;1mNetname already modify,Restart to take effect\e[0m"}set_eth0 () { if [[ $OS == Ubuntu-18.04* ]];then mv /etc/netplan/01-netcfg.yaml{,.bak}cat > /etc/netplan/01-netcfg.yaml |
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