#!/bin/bash N=$galera_N x=`expr $N - 1` for i in $(seq 0 $x) do num=`printf "%03d" $i` sshkey_var=galera_"$num"_keyfile user_var=galera_"$num"_whoami IP_var=galera_"$num"_network sshkey=${!sshkey_var} user=${!user_var} IP=${!IP_var} ssh -i $sshkey -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no $user@$IP "sudo mysql_install_db; sudo chown -R mysql:mysql /var/lib/mysql" done