根据字符串与所有库相匹配输出包含该字符串的库，表，字段

背景：
要求在所有库下面查找出包含有域名（www.xxxx.com）字符串的库，表，字段

#!/bin/bash
# line:           V1.3
# mail:           gczheng@139.com
# data:           2018-07-06
# script_name:    


#=======================================================================
# MySQL 连接选项
#=======================================================================
MY_USER="root"
MY_PASSWORD="iforgot"
MY_IP=192.168.49.251

MYSQL_CONN_OPTION=" -u$MY_USER -p$MY_PASSWORD -h$MY_IP -N"


#=======================================================================
# 5.5文件和日志目录
#=======================================================================

CHK_FILE=check_table-$MY_IP.log

if [ -d $CHK_FILE ];then
echo "文件存在"
else
echo "文件不存在"
touch $CHK_FILE
fi

#=======================================================================
# echo添加颜色
#=======================================================================
echo_color(){
	color=${1} && shift
	case ${color} in
		black)
			echo -e "e[0;30m${@}e[0m"
			;;
		red)
			echo -e "e[0;31m${@}e[0m"
			;;
		green)
			echo -e "e[0;32m${@}e[0m"
			;;
		yellow)
			echo -e "e[0;33m${@}e[0m"
			;;
		blue)
			echo -e "e[0;34m${@}e[0m"
			;;
		purple)
			echo -e "e[0;35m${@}e[0m"
			;;
		cyan)
			echo -e "e[0;36m${@}e[0m"
			;;
		*)
			echo -e "e[0;37m${@}e[0m"
			;;
	esac    # --- end of case ---
}

#=======================================================================
# 行号自增和判断执行情况
#=======================================================================
rownum=0
rownum=`expr $rownum + 1`

function run_status()
{
if [ $? -eq 0 ];then
  echo_color green "$(date +'%Y-%m-%d %H:%M:%S') Command execution successful..."
else
  echo_color red "$(date +'%Y-%m-%d %H:%M:%S') Command execution failed, please check..."
  exit 1
fi
}

function auto_increment()
{
rownum=`expr $rownum + 1`
}


#=======================================================================
#判断帐号和IP是否异常
#=======================================================================
function conn_check()
{
echo_color purple "$rownum,检查mysql连接是否正常"
mysql $MYSQL_CONN_OPTION  -e 'select @@hostname as Update_Host;'
if [ "$?" -ne 0 ];then
	echo_color red "$rownum,mysql连接异常,请检查帐号密码和主机名/IP......"
	exit 1
fi
auto_increment
}


#=======================================================================
#检查帐号、表、磁盘空间、触发器
#=======================================================================
function run_check()
{
#3检查所有库里面的表
echo_color purple "$rownum,检查所有库里面的表"
TABLE_SCHEMAS=`mysql $MYSQL_CONN_OPTION -e "SELECT DISTINCT TABLE_SCHEMA FROM information_schema.COLUMNS where TABLE_SCHEMA not in ('sys','mysql','information_schema','performance_schema','test')"`
for schema in $TABLE_SCHEMAS
do
	TABLE_NAMES=`mysql $MYSQL_CONN_OPTION -e "SELECT DISTINCT TABLE_NAME FROM information_schema.COLUMNS where TABLE_SCHEMA='$schema'"`
	echo_color yellow "$TABLE_NAMES"
	for table in $TABLE_NAMES
	do
		COLUMN_NAMES=`mysql $MYSQL_CONN_OPTION -e "SELECT DISTINCT COLUMN_NAME FROM information_schema.COLUMNS where TABLE_SCHEMA='$schema' and TABLE_NAME='$table'"`
		echo_color red "$COLUMN_NAMES"
		for column in $COLUMN_NAMES 
		do
			nums=`mysql $MYSQL_CONN_OPTION -e "SELECT $column FROM $schema.$table where $column like '%www.xxxx.com%'"|grep -w 'www.xxxx.com' |wc -l`
			if [ $nums -gt '0' ];then
				echo $schema.$table.$column >> $CHK_FILE
			fi
			sleep 0.1
		done
	done
done


}
conn_check
run_check

echo_color blue "$(date +'%Y-%m-%d %H:%M:%S') 33[42;37m 脚本执行完成 33[0m" >>$CHK_FILE

执行结果

iusm.account_icon.icon_url
iusm.operator_info.iconurl
iusm.t_da_anchor_role.f_idphoto
iusm.t_shopping_main_product.f_postlist
iusm.t_user_suggestion.f_pic_url
2018-07-12 09:26:19  脚本执行完成