#script.sh
#!/usr/bin/expect -f
    username=user
    password=pass
    for HOST in $(cat $1)
            do
                    echo "ssh $username@$HOST"
                    expect "Password:"
                    send "$passr"
            done

file.txt
1.1.1.1
2.2.2.2
3.3.3.3
4.4.4.4

# vim server.list
192.168.0.100
192.168.0.101

# apt-get install sshpass
$ vim script.sh
#!/bin/bash
while read -r line
do
    echo "running $line"
    sshpass -p PASSWORD ssh-copy-id USERNAME@$line -o "StrictHostKeyChecking no"
done < "server.list"

$ sh script.sh
running 192.168.0.100
...
Number of key(s) added: 1
running 192.168.0.101
...
Number of key(s) added: 1