Shell Programming and Scripting

#!/usr/bin/expect

spawn /usr/bin/ssh-keygen

expect "Enter file in which to save the key" {send "\n"}
expect "Enter passphrase" {send "\n"}
expect "Enter same passphrase again" {send "\n"}

>> ./genkey.sh
spawn /usr/bin/ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/xxx/xxxxxxx/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again: 
>>