Shell Programming and Scripting

#!/bin/sh

echo "%%%%%%I am at destination server%%%%%%%%"
echo "%%%%%% log in to source %%%%%%%"
ssh root@10.34.80.53 (here how to pass "shroot" automatically in script)
scp ~/.ssh/id_rsa.pub root@ASK_USER_FOR_DESTINATION_SERVER_IP:/tmp/id_rsa.pub
exit

echo "%%%%%%I am at destination server%%%%%%%%"
cat /tmp/id_rsa.pub >> ~/.ssh/authorized_keys;rm /tmp/id_rsa.pub; chmod 0600 ~/.ssh/

#!/usr/bin/expect -f
#
# send a single file via scp
#
#

# check command-line for correct number of
# arguments
if {[llength $argv] != 3} {
    puts stderr "Usage: sendfile </path/to/file> <host> <remote directory>"
    exit 1
}

# store argument
set f [lindex $argv 0]
set h [lindex $argv 1]
set d [lindex $argv 2]

# set credentials
set u "root"
set p "shroot"

# send the file to the given host
spawn scp $f $u@$h:$d

# handle the password prompt
expect "?assword:*"
send -- "$p\r"
send -- "\r"

# done
expect eof