linux Copy the file to a subfolder of the current directory

linux Copy the file to a subfolder of the current directory, such as

The directory structure is probably

-sh
|__ db_backup
|___ test
|____ 2018_01_01_00_00_00
|_____ 2018_01_01_00_00_00.sql.gz
|___ backup

cp.sh Shell script file is about:

#!/bin/sh
cd /home/waka/sh/db_backup/test
cp $(find /home/waka/sh/db_backup/test/ -type f -name "*.sql.gz")  /home/waka/sh/db_backup/test/backup