Question

I need to restart apache on a dozen servers. I can log into each one and do it or I can have one script on the first one do it for me. Can you help me out?

Server 1 has access to all the other servers through known hosts.

Manually I can run this:

ssh user@server2
service httpd restart
exit

...

ssh user@server100
service httpd restart
exit

How can I script this to run from server 1 to restart all my servers?

Answer 1

for I in $(seq 2 100) ; 
do 
   ssh user@server$I 'service httpd restart' ;
done