crontab/var/file_bake_tar.sh

# /bin/bash！
dir_arr[0]="/usr/phpprj/labourunionserver/public/Uploads"
dir_arr[1]="/usr/phpprj/newwatercatserver/public/Uploads"
dir_arr[2]="/var/www/app.tjzhxx.cn/public/Uploads"
dir_arr[3]="/var/www/watercatwebsite/public/upload"
dir_arr[4]="/var/www/watercatwebsite/public/file"

back_public="/mnt/cosfs/backpublic"
#back_public="/var/wj/backpublic"
back_public_base=$back_public"/$(date "+%Y%m%d%H%M%S")"
log_file=$back_public_base"/log.log"
if [ ! -d "$back_public_base" ]
then
	mkdir -p "$back_public_base"
fi
if [ ! -f "$log_file" ]
then
	touch "$log_file"
fi
OLD_IFS="$IFS"
IFS="/"
for i in "${!dir_arr[@]}"
do   
	dir="${dir_arr[$i]}"
	arr=($dir)
	echo "$i"-"$dir" $(date "+%Y-%m-%d %H:%M:%S") backup start >> "$log_file"
	backfielpath="$back_public_base"/"${arr[3]}"
	if [ ! -d "$backfielpath" ]
	then
		mkdir -p "$backfielpath"
	fi
	if [ -d "$dir" ]
	then
		cd "$dir"
		backfile="$backfielpath"/"${arr[5]}".tar.gz
		tar -czf "$backfile" *
	fi
	echo "$i"-"$dir" $(date "+%Y-%m-%d %H:%M:%S") backup end >> "$log_file"
done 
IFS=$IFS_OLD
find "$back_public" -type d -mtime +7 -exec rm -rf {} \;