Shell Programming and Scripting

Hello,

I am scripting noob but I need little monitoring script.
It will be very good if you can help me.

What I need:
Script will login via ssh to another machine (ssh -l user ipadress), make top command and log first row + machine ip. It should monitor like 10 machines.
Script should run via cron every hour. Log file should not be overwritten but new information should be added into end.

Output should be written into home directory on monitoring machine and should looks like
machineip
top - 12:00:00 up 90 days, 00:00, 3 users, load average: 0.50, 0.50, 0.50
machineip2
top - 12:00:00 up 30 days, 00:00, 13 users, load average: 1.50, 1.50, 1.50.

Can you help me please?

Thank you very much

Hi Biosko,

given that you established a password-less ssh-login on all of the remote machines and the username is the same on all machines, the following one-liner should do what you want:

Code:

#!/bin/bash
for h in machine1 machine2;do echo $h;ssh -l user $h uptime;done 1>>monitoring.log

cheers,
Max