Is the following even possible ? by echo $3, I mean enter password when prompted for it. My main issue is that it would deal with a prompted password, which is passed from the command line like this:

./processing serverA user password

I cannot not use expect here, I heard that was very useful. So please if any tips thanks very much
#bin/ksh

_mainProcessing()
{

_checkUsage $*
remoteLogin $server1 $dba1 $pw1


}

_checkUsage()
{



if [ -n "$1" ] && [ -n "$2" ] && [ -n "$3" ]
then

server1=$1
dba1=$2
pw1=$3

else

echo
echo " -- usage: table_check <server1> <dba1> <passwd1>"
echo

exit ${FALSE}

fi


}

remoteLogin ()
{
echo "starting login to $1 as $2 using password $3"

echo "$3
" | rlogin -n -l $2 $1


echo "finished login"
}

_mainProcessing $*

No, that will not work.

A better way to deal with this, assuming you can't use a rhost setup, or ssh with key authentication would be to use expect.