利用shell刪除資料表中指定資訊和欄位對應的檔案

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利用mysql shell命令讀取資料庫資訊,刪除指定欄位,以及欄位對應的檔案,適用Linux平臺。

前面變數定義為資料基本配置

複製程式碼 程式碼如下:
#!/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!”

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