Shell Programming and Scripting

Hello All,

Could you please help me out with a simple expect script.

Code:

bash-3.2$ cat expect.sh
#!/usr/bin/bash
#simple expect script to login to the servers and send passphrase "yes"
for i in `/usr/bin/cat /users/servers.txt`
do
  ssh $i
  expect -timeout 1 "(yes/no)" { send "yes\r" }; #ignore warnings about SSH hosts
  expect -timeout 1 "(yes/no)" { send "yes\r" }; #accept keys for new hosts to disk
done

The file servers.txt has more than 500 entries and I have not logged into all of them. I have password less login to all the hosts listed it.

The idea is to get the /etc/passwd /etc/shadow /etc/group and additional details from these servers if this works well and redirect the output.

It never goes beyond the first host and is waiting for user input

The authenticity of host 'pprdt410gc (192.168.8.52)' can't be established.
RSA key fingerprint is b1:07:50:1e:de:2b:ec:a0:f7:22:j7:e1:47:4f:81:d6.
Are you sure you want to continue connecting (yes/no)?

You didn't 'spawn' or 'S[end]' the command, so expect does not have the pseudo tty to see and answer: UNIX / Linux Bourne / Bash Shell Scripting Tutorial [ steve-parker.org ]

Just to help you optimize what you wanna do, try to use the ssh option : -o StrictHostKeyChecking=no

This will avoid the yes/no part so you only concentrate on password.