Shell Programming and Scripting

Hi guys,

I'm writing a script on a Solaris 10 server (server A) that needs to telnet 2 servers (server B & server C) and get a certain process count from these 2 servers.

Then on server A, I check if both counts are greater than 17, I do a sendmail to concerned people.

For the telnet part, this is what I'm trying to do and getting stuck:

Code:

{
sleep 5
echo root
sleep 3
echo password
sleep 3
##echo ls
uname -a
sleep 5
echo exit
} | telnet 192.168.20.71

Instead of the 'echo ls' above, I wanted to do something like

Code:

ps -ef|grep dw.sap|wc -l

and get the value back in server A

Please tell me how I can do the process count and get it back to server. Or, do tell me if there's some other way...


regards

Why are you using telnet instead of a remote shell ( rsh etc...) or ssh ?

e.g. as here remote shells are blocked by routers for security:

Code:

n12:/home/vbe $ uname;ssh barge "uname && ps -ef|grep vbe|wc -l"
AIX
Password: 
SunOS
       4

as I have not used publick keys for no passwd setting on this remote box ( as I dont normally connect to it but cant think of another solaris at the moment...) It has asked my passwd... but this gives you the idea...

Hi Vbe,

Thanks lots for the help.

Indeed ssh seems to work fine.
Now, in the script how will I provide the root password when I do the ssh?

Secondly, how will I capture the value of the count - how can I store it to some variable?

regards.

You best set ssh up for public key authentication, so you don't have to supply any password.
You can capture the output by using "command substitution" like A=$(ssh ...).

Hi RudiC,

Thanks for the info. I had read about the public key authentication but I won't be able to do it as of now.
Is there some other way?

regards.

Hi all,

I was able to do it using rsh.

Thanks all for the help.

regards.