ssh expect example

Simple expect ssh example

This expect script would be called from a shell script, and would ssh to the host passed as an argument (argv), perform the command specified, and disconnect. (Thanks, Tiger O.)

#!/usr/bin/expect

set timeout 1
set cmd {uname -a}

spawn ssh root@$argv
expect_after eof { exit 0 }


## interact with SSH
expect "yes/no" { send "yes\r" }
expect "password:" { send "rootpasswd\r" }

expect "# "
send "$cmd\r"
expect "$cmd\r"
expect "(.*)\r"
send "exit\r