Linux 下动态查找磁盘数量方法

#!/bin/bash
##磁盘数量
Disk=$( fdisk -l |grep 'Disk' |grep 'sd' |awk -F , '{print "%s",substr($1,13,1)}')
var=${Disk: -1:1}
echo blacklist{ >> /etc/multipath.conf
echo           devnode "^sd[a-${var}]$" >> /etc/multipath.conf
echo           devnode "^sd[a-${var}][1-9]$"} >> /etc/multipath.conf

并写道配置文件中。windows下bash容易出现编码错误问题，弄了半天…………………………………………………………………………………………………………………………………………………………………………………………………………