脚本化处理linux云服务器第二硬盘初始化

 #!/usr/bin/bash

 # 可以带参数
 method=$
 size=$
 mydir=$
 [ $#== ]&&{
 echo -e "Missing parameter! Usage: $0 method size dirname"
 echo -e "\t\t\tmethed- -----  add , extend, remove"
 echo -e "\t\t\tsize -----  xxG\n"
 }

 myfdisk()
 {
 # fdisk 分区第二硬盘，vdb ,分区格式lvm
 echo "n
 p

 t
 8e
 w
 " | fdisk /dev/vdb
 vgextend centos /dev/vdb1
 }

 [ -b /dev/vdb1 ]||myfdisk

 myextend()
 {
     lvextend -L $size /dev/mapper/centos-root
     xfs_growfs /dev/mapper/centos-root
 }

 case $method in
 "extend")
 # 扩容root根目录
 myextend
 ;;

 "add")
 lvcreate -L $size -n $mydir centos
 [ -d /$mydir ] || mkdir /$mydir
 mkfs -t xfs /dev/mapper/centos-$mydir
 mount /dev/centos/$mydir /$mydir
 uuiddata=$(blkid |grep "centos-$mydir"|awk '{print $2}'|awk -F \"  '{print $2}')
 cp /etc/fstab /etc/fstab.bak
 [ -n $uuiddata ]&&echo "UUID=$uuiddata /$mydir                   xfs     defaults        0 0" >>/etc/fstab
 ;;

 "remove")
 mydir=$
 cp /etc/fstab /etc/fstab.bak2
 sed -i "/\/$mydir/d" /etc/fstab
 umount /$mydir
 lvremove -y /dev/mapper/centos-$mydir
 ;;

 "*")
 ;;

 esac