Linux Expect SSH hangs

Question

I tried to install R across a cluster of computers and someone told me to check out Expect.

I was following a tutorial about Linux Expect Command to automate the process of ssh into node and install open source R automatically.

I am kind of stuck on the ssh part: ( Tutorial goes here )

#!/usr/bin/expect -f 

if {[llength $argv] != 3} {
puts "usage: ssh.exp username server password"
exit 1
}

set username [lrange $argv 0 0]
set server [lrange $argv 1 1]
set password [lrange $argv 2 2]

set timeout 60

spawn ssh $username@$server.mycompany.com

match_max 100000

expect "*?assword:*"

send -- "$password\r"

send -- "\r"

expect eof

I can run the code and log into the remote server, however, I type in ls and it just hangs on the remote server side. And I ctrl + c and it log out and goes back to my host server.

Can any one tell me how to continue the process in Expect after you log in.

Update: Due to Ireeder's answer.

You just need to replace expect eof with interact and it will hand over the control to the user.

Answer 1

Put interact at the end of the script, which returns control to the script caller, and allows you to interact with the remote shell. So change your script like this:

#... top of script
send -- "$password\r"

send -- "\r"

interact

See http://wiki.tcl.tk/3914