#! /bin/sh

CMD=`echo "${SSH_ORIGINAL_COMMAND}" | awk '{print $1}'`

case "$CMD" in
    ls | scp | echo | /usr/lib/openssh/sftp-server)
        $SSH_ORIGINAL_COMMAND
        exit $?
        ;;
    rm)
        exit 0
        ;;
    *)
        echo "Forbidden command."
        exit 1
esac