Mount aws volume

#!/bin/bash

if [ "$EUID" -ne 0 ]
  then echo "Please run as root"
  exit
fi

file -s /dev/xvdb
mkfs -t ext4 /dev/xvdb
mkdir /data
mount /dev/xvdb /data
cp /etc/fstab /etc/fstab.orig
UUID=$(file -s /dev/xvdb | grep -E -o '[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}')
echo "UUID=${UUID}       /data   ext4    defaults,nofail        0       2" >> /etc/fstab
umount /data
mount -a