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    利用shell删除数据表中指定信息和字段对应的文件

    作者:admin 时间:2021-02-18 06:02

    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!"

    js
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