SFTP dual authentication with batchfile

I'm trying to connect to a server where dual authentication (publickey,password) is enabled. I'm using sshpass to provide password to automate the script, but when I have batchfile with SFTP, connection fails without batchfile connection succeeds > export SSHPASS=helloworld > > (sshpass -e sftp -b batfile.txt -o 'PasswordAuthentication=yes' \ > -o 'PreferredAuthentications=publickey,password' -o 'StrictHostKeyChecking=no' user@hostname) Error: > Permission denied (password). > Couldn't read packet: Connection reset by peer Connection is successful without batchfile > (sshpass -e sftp -o 'PasswordAuthentication=yes' \ > -o 'PreferredAuthentications=publickey,password' -o 'StrictHostKeyChecking=no' user@hostname) I've tried providing password inside a batchfile but no luck. Is it possible what I'm trying to achieve sshpass along with batchfile, if so, can someone please help me on this Batchfile: echo "Hey, I'm from Inside" !echo "Hey, I'm from Outside"