mysqldump by table field date

[root@sqlnode3 script]# cat radacct_daily.sh
#!/bin/bash
#This script will backup the radacct table on daily basis

sys_date=`date +%F -d '-1 day'`
echo $sys_date;

/usr/bin/mysqldump --single-transaction --no-create-db --no-create-info ctradius radacct --where="acctstarttime LIKE '${sys_date}%'" >  /backup/freeradius/radacct-`date +%F -d '-1 day' `.sql

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