centos初始化脚本

centos初始化脚本

添加IP、主机名、挂载/dev/sdb1磁盘

#!/bin/bash
#

ip=$1
hostname=$2

if [ -z $ip ] || [ -z $hostname ]; then
   echo " "
   echo "Sorry, IP or host is null"
   echo "# The format : bash set.sh ip hostname"
   echo "# For example: bash set.sh 192.168.72.13 node1"
   echo " "
   exit
fi

function check_ip() {
    VALID_CHECK=$(echo $ip|awk -F. ‘$1<=255&&$2<=255&&$3<=255&&$4<=255{print "yes"}‘)
    if echo $ip|egrep "^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$">/dev/null; then
        if [ ${VALID_CHECK:-no} == "yes" ]; then
            echo "ip $ip available."
        else
            echo "ip $ip not available!"
            exit 1
        fi
    else
        echo "ip format error!"
        exit 1
    fi
}

ndir="/etc/sysconfig/network-scripts/ifcfg-ens192"
ob="`grep "ONBOOT" $ndir`"
ipaddr="`grep "IPADDR" $ndir`"
gateway="`grep "GATEWAY" $ndir`"
gt="`echo ${ip%.*}`"
dns1="`grep "DNS1" $ndir`"
dns2="`grep "DNS2" $ndir`"
nt="`grep "NETMASK" $ndir`"

sed -i "s/$ob/ONBOOT=yes/g" $ndir
sed -i "s/$ipaddr/IPADDR=$ip/g" $ndir
sed -i "s/$gateway/GATEWAY=$gt.1/g" $ndir
sed -i "s/$dns1/DNS1=8.8.8.8/g" $ndir
sed -i "s/$dns2/DNS2=114.114.114.114/g" $ndir
sed -i "s/$nt/NETMASK=255.255.255.0/g" $ndir

systemctl restart network

ping -c 2 -W 2 www.baidu.com &>/dev/null
    if [ $? != 0 ]; then
        echo " "
        echo " "
        echo "The $ip is unavailable, Please check again......"
        echo "The $ip is unavailable, Please check again......"
        echo "The $ip is unavailable, Please check again......"
        echo " "
        echo " "
        exit 1
    else
        echo " "
        echo " "
        echo "The $ip is OK !!!"
        echo "The $ip is OK !!!"
        echo "The $ip is OK !!!"
        echo " "
        echo " "
    fi

hostnamectl --static set-hostname $hostname

echo "The name is `hostname`"

echo " "
echo " "

disk="/dev/sdb"
mpath="/opt/data"

Format_disk() {
  echo "n
p
1


w
" | fdisk $disk &>/dev/null && mkfs.ext4 "$disk"1  &>/dev/null

  #mkdir $mpath
  mount "$disk"1 $mpath
  UUID=`blkid "$disk"1 | awk ‘{print $2}‘`
  echo "$UUID $mpath ext4 defaults 0 0" >> /etc/fstab
  source /etc/fstab &>/dev/null
  df -T | grep "$disk"1
  mount | grep "$disk"1
}

Judge() {
  fnum="`fdisk -l | grep /dev/sdb | wc -l`"
  if [ $fnum -ge 1 ]; then
     mkdir -p $mpath
     echo "Initialize the disk $disk, and mount $mpath"
     read -p "Please enter the number
       0  No initialize the disk and exit;
       1  Initialize the disk;
            Please input: " num
     case $num in
         0)
           echo " "
           echo "No initialize the disk, exit..." ;;
         1)
           echo "Initialize the disk"
           sleep 2        
           echo " "
           Format_disk  ;;
         *)
           echo " "
           echo " "
           echo "Please input 0 or 1"
           Judge ;;
     esac
  else
     echo "The server does not have this disk: $disk"
  fi
}

Judge
bash

 

 

 

centos初始化脚本

原文：https://www.cnblogs.com/hanshanxiaoheshang/p/12377095.html