#!/bin/bash

STAMP=`date '+%Y_%m_%d'`
DBUSER=root
DBPASS=
for i in `ls /home/`; do
  export LUSER=$i
  for x in `mysql -u$DBUSER -p$DBPASS -e 'show databases'|grep ^"$LUSER"_`; do
  # x je database name u ovom slucaju, dodaj/oduzmi stamp gdje ti pashe u nazivu
  mysqldump -u$DBUSER -p$DBPASS $x|gzip  > /home/$LUSER/backup/$STAMP-$x.sql.gz
  done
done