Shell Programming and Scripting

Hello ,

I have a problem which involves a set of command should be executed on remote host and output should be stored in a file. But due to security reason I can not use expect to enter the password and its not possible to create password less login for multiple user to do the same thing and we can not set one user to do this task.

I have to write only shell script to do this . Perl/Python is not suggested in my environment.

However perl/python can be taken under consideration if it doesn't involves us to install any extra module. Perl/Python script should not require any extra module which needs to be installed or does not comes with the default installation.

Let me know if any one have any idea about it.

So, you intend to type in the password every time for each server?

--ahamed

Yeah as of now it seems to be that only. But is there any way that can be achieved? Is there any way to write my own expect function?

If that is possible I can do it . But I am not that smart in scripting yet.

Thank you

This can give you a start...

Code:

#!/bin/bash
user="admin"
hostlist="127.0.0.1 127.0.0.2 127.0.0.3"
for host in $hostlist
do
        echo $user@$host >> /tmp/log
        ssh $user@$host "ps" >> /tmp/log
done

The output is stored in the /tmp/log file. It will ask for password and you need to enter it!

--ahamed

Thanks but , is there a way to write a function which should act like expect or Net::SSH.

What do you mean by "act"?? Please elaborate.

--ahamed

Without expect you can try with as below ... But this is working on Solaris serves only ...

Code:

# echo -e "ur-psw" | rsh <seever-ip" 

-- Shirish Shukla