利用shell删除数据表中指定信息和字段对应的文件

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 databaseinfo whick state is 3

#History:

#  2014/2/23  cjp  First release

#  2014/3/5/  cjp  change valuesetting 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!”