shell脚本报错{"errcode":40035,"errmsg":"缺少参数 json"

#!/bin/bash
source ~/.bash_profile
time=$(date "+%Y-%m-%d %H:%M:%S")
webhook=‘https://oapi.dingtalk.com/robot/send?access_token=efca4349w23b9488aa48f97a14194996e7eb61cbfa51d57a31dffa874e5b1ce2‘
HOSTNAME="10.27.228.11"    #数据库主机IP
PORT="3306"     #端口号
USERNAME="root"     #用户名
PASSWORD="paopao1818.cn"        #密码 （如mysql>5.6会提示密码安全问题，可以正常执行脚本，可以在my.cnf文件中的 [client]  下面加入password   = YourPassword，然后注释本行即可，意思为将密码写到配置文件中，不在shell中明文）

DBNAME="airflow_old"   #数据库名称
TABLENAME="import_error"   #数据库中表的名称

function SendMsgToDingding() {
    curl $webhook -H ‘Content-Type: application/json‘ -d "
    {
        ‘msgtype‘: ‘text‘,
        ‘text‘: {
                     ‘content‘: ‘
    标题：airfow
    时间:$time
    告警信息:[${stacktrace}]
    报错脚本:[${filename}]
    请马上处理！！！‘            
      },
        ‘at‘: {
            ‘isAtAll‘: true
        }
    }"
}


select_sql="select CONCAT_WS(‘-‘,filename,stacktrace,‘$‘) as rows from ${TABLENAME}" 
result=`mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${select_sql}" | awk ‘NR>1‘`       #执行sql（如将密码写入my.cnf中，删除 -p${PASSWORD} 即可，因为默认使用了密码。如此方法行不通，直接  result=`mysql -h${HOSTNAME} -P${PORT} -u${USERNAME} -proot ${DBNAME} -e "${select_sql}" | awk ‘NR>1‘`）
arr=$(echo $result|tr -d "\n\t")       # 查询到结果去除特殊符号，

echo $arr>arr.log

/bin/rm -rf /home/admin/software/test/mysql.txt
touch /home/admin/software/test/mysql.txt
echo $result>result.log
for s in ${arr[@]}                           # 遍历数组，写入hosts文件，根据是否含有逗号做不同处理
do  
   echo ${s}>>s.log
    [[ $s =~ "$" ]] && echo -ne ${s} |grep -v ‘$‘"/n" >> /home/admin/software/test/mysql.txt
    [[ $s =~ "$" ]] || echo -ne ${s}" "  >> /home/admin/software/test/mysql.txt
done
count=`wc -w mysql.txt|awk -F " " ‘{print $1}‘`
count1=`wc -l mysql.txt|awk -F " " ‘{print $1}‘`
echo $count
if [ ${count} -eq 0 ] ; 
then
echo $date"代码运行正常">>date.log
else
cat mysql.txt|sed  $‘s/\‘//g‘ | while read line
do
echo "i的值是："$i
time=$time
filename=`echo ${line}|awk -F‘-‘ ‘{print $1}‘`
echo "报错文件" $filename
stacktrace=`echo ${line}|awk -F‘-‘ ‘{print $2}‘`
echo "报错内容" $stacktrace
SendMsgToDingding
done
fi