$number_server = 7;
$server_name = "dbfs";
exec("/bin/bash drun.sh $number_server $server_name",$db_uptime);
foreach($db_uptime as $dbm_load){
echo $dbm_load."<br />";
 }

#!/bin/sh
for i in seq $1; do ssh $2$i 'uptime;free -m;mpstat;cat /tmp/db2.info'; done &
pid=$!
sleep 2
kill -9 $pid

#!/bin/bash

for ((i=0; i<$1; i++)); do
    ssh "$2$i" 'uptime;free -m;mpstat;cat /tmp/db2.info'
done &
pid=$!
sleep 2
kill -9 $pid