终于搞出一个reset脚本,但是还有地方需要改,比如邮箱地址改成自动输入,ip地址自动输入并检测是不是合法ip,还要考虑通用性,目前只能在centos8上执行
先来看看脚本把

#!/bin/bash
#this scirpt for reset a new machine
COL=`echo -e "\e[1;$[RANDOM%7+31]m"`
END=`echo -e "\e[0m"`
echo 		     	 $COL	 "
1:install toolkits
2:setup .vimrc .mailrc \$PS1
3:setup etho firewalld 
4:setup yum.repo
		    	 $END    "
#show the Options and make random color
	

KITS="gcc make autoconf gcc-c++ glibc glibc-devel pcre pcre-devel openssl
openssl-devel systemd-devel zlib-devel  vim lrzsz tree tmux lsof tcpdump wget
net-tools iotop bc bzip2 zip unzip nfs-utils man-pages autofs "
#add anthing in $KITS to  install

    read -p"$COL Pick one (1-4) $END"  FUN
      if
        [ $FUN = 1 ] ;then
		echo $COL "please be patient it's might gonna take a while"  $END
		echo "$KITS "|xargs   yum -y install  &&
			systemctl start autofs  ; systemctl enable autofs  
#				 updatedb
                   mandb   &> /dev/null
	       	echo $COL "installed toolkits" $END
					exit 10

#install toolkits and start /misc/cd

      elif	 			  

	 [ $FUN = 2 ] ;then
	 	echo 'PS1="\e[1;$[RANDOM%7+31]m[\u@\t \W]\#\\$\e[0m"' > /etc/profile.d/env.sh  &&
		echo $COL "\$PS1 Setup is complete"	$END
	cat > .vimrc  <<WID
set ts=4
set expandtab
set ignorecase
set cursorline
set nu
WID
        echo $COL ".vimrc  Setup is complete" $END
#creat .vimrc




	cat > .mailrc <<QUS
set from=yuhang997@qq.com
set smtp=smtp.qq.com
set smtp-auth-user=yuhang997@qq.com
set smtp-auth-password=esvnhbnqocirbicf
set smtp-auth=login
set ssl-verify=ignore
QUS
        echo $COL ".mailrc  Setup is complete" $END
#creat .mailrc        



# alias next line 
	echo "`sed -i.bak  "7a\alias la='ls -A'"  .bashrc `"


		exit  20


#setup PS1   .mailrc .vimrc  alias



	
     elif	

  [ $FUN = 3 ] ;then
	systemctl stop firewalld ;systemctl disable firewalld  &&              echo "$COL Colsed firewalld $END"
	#stop firewalld			

	cd /etc/sysconfig/network-scripts
        mv  *	/data        


	cat > ifcfg-eth0  <<EOF
NAME="eth0"
DEVICE="eth0"
IPADDR=10.0.0.11
BOOTPROTO="static"
PREFIX=24
GATEWAY=10.0.0.2
DNS1=180.76.76.76
DNS2=223.6.6.6
ONBOOT="yes"
EOF

	sed -Ei.bak  '6s/(.*)"$/\1 net.ifnames=0\"/'  /etc/default/grub
	sed -Ei.bak  '7s/(SELINUX=).*/\1disabled/' /etc/selinux/config
	grub2-mkconfig -o /boot/grub2/grub.cfg
	#setup ipaddr network name 


	read -p  "$COL Effective after restart  restart now $END ? (y/n)" CHOOSE
   if	[[ $CHOOSE =~ [yY]|[Yy][Ee][Ss] ]]  ;then
		           reboot  ;echo "$COL Rebooooooooooting  $END " 
        else
			 echo "$COL Please restart manually later  $END"					
					exit 30
      fi












  elif 

	  [ $FUN = 4 ]  ;then
	DIR=/etc/yum.repos.d
if    find $DIR/bak -type d  &> /dev/null  ;then 
                echo "$COL DIR is already there$END"  
	else       cd $DIR  ; mkdir bak ;  mv $DIR/*.repo   bak  
fi

		if	[ -d "/mnt/cdrom/" ]   ;then
				echo "DIR exist"
	 else   mkdir /mnt/cdrom  ;  mount /dev/cdrom  /mnt/cdrom    &> /dev/null   
 echo "` blkid /dev/cdrom  |sed -En -e 's/"//g' -e 's/.*(UUID.*)LABEL.*/\1/p'` /mnt/cdrom  iso9660  defaults 0 0" >> /etc/fstab
		fi
#if you don't want to use local repo , Comment out the above two lines



	cat >  $DIR/aliyum.repo  <<RPG


[AppStream]
name=local Appstream
baseurl=file:///mnt/cdrom/AppStream/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
#enable=0


[BaseOS]
name=local baseos
baseurl=file:///mnt/cdrom/BaseOS/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
#enable=0


#If you want to use internet repositories, Uncomment  "enable=0" above tow repo and make below of tow repo "enable=1"

[Base]
name=alibaseos
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
baseurl=https://mirrors.aliyun.com/centos/8/BaseOS/x86_64/os/
        https://mirrors.huaweicloud.com/centos/8/BaseOS/x86_64/os/
        https://mirrors.cloud.tencent.com/centos/8/BaseOS/x86_64/os/
enabled=0

[Appstream]
name=aliappstream
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
baseurl=https://mirrors.aliyun.com/centos/8/AppStream/x86_64/os/
        https://mirrors.huaweicloud.com/centos/8/AppStream/x86_64/os/
        https://mirrors.cloud.tencent.com/centos/8/AppStream/x86_64/os/
enabled=0

[epel]
name=epel
baseurl=https://mirrors.aliyun.com/epel/8/Everything/x86_64/
gpgcheck=1

[extras]
name=extras
baseurl=https://mirrors.aliyun.com/centos/8/extras/x86_64/os/
gpgcheck=1
RPG

	echo " $COL done it $END "
		exit 40


		  
       else
	         echo $COL "wrong input exit" $END
    fi
         exit 100

脚本就四个功能,安装一些出场软件,改一下.vimrc .mailrc 关闭防火墙,改一下网卡名,ip地址,设置一下yum源
虽然是个没含量的脚本,但在写完之后仍然改了近40版(笑尿
最近学习任务很重,学磁盘管理学的脑袋疼,而且每天明明没干什么还感觉自己很忙的样子
下次打算搞个编译安装新版内核