Use Expect in a Bash script to provide a password to an SSH command
Mixing Bash and Expect is not a good way to achieve the desired effect. I'd try to use only Expect:
#!/usr/bin/expect
eval spawn ssh -oStrictHostKeyChecking=no -oCheckHostIP=no usr@$myhost.example.com
# Use the correct prompt
set prompt ":|#|\\\$"
interact -o -nobuffer -re $prompt return
send "my_password\r"
interact -o -nobuffer -re $prompt return
send "my_command1\r"
interact -o -nobuffer -re $prompt return
send "my_command2\r"
interact
Sample solution for bash could be:
#!/bin/bash
/usr/bin/expect -c 'expect "\n" { eval spawn ssh -oStrictHostKeyChecking=no -oCheckHostIP=no usr@$myhost.example.com; interact }'
This will wait for Enter and then return to (for a moment) the interactive session.
The easiest way is to use sshpass. This is available in Ubuntu/Debian repositories and you don't have to deal with integrating expect with Bash.
An example:
sshpass -p<password> ssh <arguments>
sshpass -ptest1324 ssh [email protected] ls -l /tmp
The above command can be easily integrated with a Bash script.
Note: Please read the Security Considerations section in man sshpass
for a full understanding of the security implications.