SSH expect script code for automatic login _linux Shell

Implementation: SSH remote login, each time to specify a bunch of user names and passwords, is required to implement automatic login.
Login process: Local A first log in to B and then log on to the final C

As follows:

Copy Code code as follows:

#!/usr/bin/expect-f
Set Timeout 30
Spawn ssh B
Expect "Password:"
Send "passwd@\r"
Expect "]*"
Send "ssh name@c-p port\r"
Expect "Password:"
Send "passwd\r"
Interact

To run expect on the system, you must first install TCL
#apt-get Install expect