#!/bin/bash
export LANG=c

ROOT_UID=0
E_ROOT=2

if [ $UID -ne $ROOT_UID ];then
	echo "You must run this script use root ..."
	exit $E_ROOT
fi

FSTAB_FILE=/etc/fstab
#判断rocky4.2和linx6.0,因为这两个版本中/etc/fstab文件中序列号的位置不同
FLAG_VERSION=`grep 'Linx' /etc/issue|awk '{print $1}'`
if [ "${FLAG_VERSION}" == "Linx" ];then
#Linx 6.0.x
	for i in `grep -n 'defaults' $FSTAB_FILE |grep -v proc| awk   'BEGIN{OFS="|"}{print $1,$4}'`
	do
		original_data_mode=$(echo $i | cut -d'|' -f2 | awk -F',' '{print $3}')
		line=$(echo $i | cut -d':' -f1)

		if [ ${original_data_mode}!=" " ];then
			sed -i "${line}s@defaults,acl,${original_data_mode}@defaults@"  $FSTAB_FILE
			sed -i "${line}s@defaults@defaults,acl,data=writeback@"  $FSTAB_FILE
		else
			sed -i "${line}s@defaults@defaults,acl,data=writeback@"  $FSTAB_FILE
		fi
	done
else
#rocky4.2.x
	for i in `grep -n 'acl' $FSTAB_FILE | grep d5000 | awk   'BEGIN{OFS="|"}{print $1,$4}'`
	do
		original_data_mode=$(echo $i | cut -d'|' -f2 | awk -F',' '{print $2}')
		line=$(echo $i | cut -d':' -f1)

		if [ ${original_data_mode}!=" " ];then
			sed -i "${line}s@acl,${original_data_mode}@acl@"  $FSTAB_FILE
			sed -i "${line}s@acl@acl,data=writeback@"  $FSTAB_FILE
		else
			sed -i "${line}s@acl@acl,data=writeback@"  $FSTAB_FILE
		fi
	done

fi