038_使用脚本自动创建逻辑卷

#!/bin/bash
#清屏,显示警告信息,创建将磁盘转换为逻辑卷会删除数据
clear
echo -e "33[32m!!!!!!警告(Warning)!!!!!!33[0m"
echo
echo "+++++++++++++++++++++++++++++++++++++++++++++++++"
echo "脚本会将整个磁盘转换为 PV,并删除磁盘上所有数据!!!"
echo "This Script will destroy all data on the Disk"
echo "+++++++++++++++++++++++++++++++++++++++++++++++++"
echo

read -p "请问是否继续 y/n?:" sure
     [ $sure != y ] && exit
read -p "请输入磁盘名称,如/dev/vdb:" disk
     [ -z $disk ] && echo "没有输入磁盘名称" && exit
read -p "请输入卷组名称:" vg_name
     [ -z $vg_name ] && echo "没有输入卷组名称" && exit
read -p "请输入逻辑卷名称:" lv_name
     [ -z $lv_name ] && echo "没有输入逻辑卷名称" && exit
read -p "请输入逻辑卷大小:" lv_size
     [ -z $lv_size ] && echo "没有输入逻辑卷大小" && exit

#使用命令创建逻辑卷
pvcreate $disk
vgcreate $vg_name $disk
lvcreate -L ${lv_size}M -n ${lv_name} ${vg_name}