利用mysql shell命令读取数据库信息，删除指定字段，以及字段对应的文件，适用Linux平台。

前面变量定义为数据基本配置

复制代码 代码如下:

#!/bin/bash

#Program

# delete the database'info whick state is 3

#History:

# 2014/2/23 cjp First release

# 2014/3/5/ cjp change value'setting on 117

PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/usr/local/bin:/usr/local/sbin:~/bin

export PATH

host="127.0.0.1"

port="3306"

user="user"

passwd="passwd"

dbname="database"

tablename="table"

field="t_field"

outField="t_id,t_path"

fileRootPath="/var/www/html/apath"

filePath=""

#checkdown data

mysql -h$host -P$port -u$user -p$passwd $dbname -e "SET NAMES utf8;SELECT ${outField} FROM ${tablename} WHERE ${field} = 3" > data_info

date -d '1970-01-01 UTC 946684800 seconds' +"%Y-%m-%d %z" >> del_log.log

#delete image file and mysql data

sed '1d' data_info | while read line

do

echo $line > findtemp

awk '{print $2}' findtemp > imagetemp

cat imagetemp | while read imagedata

do

filePath=${fileRootPath}${imagedata}

echo $filePath >> del_log.log

rm -f $filePath

done

awk '{print $1}' findtemp > idtemp

cat idtemp | while read iddata

do

mysql -h$host -P$port -u$user -p$passwd $dbname -e "SET NAMES utf8;DELETE FROM ${tablename} WHERE s_id = ${iddata}"

done

done

rm -f data_info

rm -f imagetemp

rm -f idtemp

echo "^-^ clean!"