check_size.sh

#!/bin/bash

limit=92
dir=/home/bfdz/rtorrent/downloads/
v_mail=
log=/var/log/check_size.log

flag=0
while [ 1 ]
do
   v_size=$(df / | grep / | awk '{print $5}' | cut -d '%' -f 1)
   if [ $v_size -ge $limit ] && [ $flag -ne 1 ]; then
      chmod 555 $dir
      echo Lock_the_directory:$dir >> $log && date >> $log
      echo "盒子的使用空间超过 $limit%,目录 $dir 已禁止写入." | mail -s "=?UTF-8?B?`echo 盒子剩余空间不足 | base64`?=" $v_mail
      flag=1
   fi
   if [ $v_size -lt $limit ] && [ $flag -ne 0 ]; then
      chmod 775 $dir
      flag=0
   fi
   sleep 30
done