ssh with password from a file

pwfile

dev MTIzNDU2Cg==

sshp

#!/usr/bin/expect

set timeout 20

set cmd [lrange $argv 1 end]
set password [lindex $argv 0]

eval spawn $cmd
set output [exec grep $password pwfile | awk {{print $2;}} | base64]
expect "assword:"
send "$output\r";
interact

The pwfile format is:

<name> <base64 encoded password>

every line is a single password config. You can add several password lines with different names.

Run:

sshp <name> ssh root@your.host