a shell script to auto dump db

you should make sure the db user have the right to dump the whole
dbs,some a root user is recommend.
you can easily deploy the script as a cronjob by execute the command as
descript in the file
Revert "a shell script to auto dump db"

This reverts commit 6a5622ff413b55cde20ff244b0615fcf1ae87b1e.
a shell script to auto dump db

please change the username ,password and dbs you want to backup in the
script to create your own db dump job.
the file also describe how to deploy the db backup as a cronjob,please
read it if you need.