#!/bin/sh
DBS="$(mysql --user=root --password='xyz' --socket=/mydata/service.sock -Bse 'show databases')"

for db in ${DBS[@]}
do
 mysqldump --user=root --password='xyz' \
    --socket=/mydata/service.sock --routines $db \
    | gzip --best > /BCK_mysql/BCK.${db}-$(date +%Y%m%d).sql.gz &
 sleep 5
done