vps:~# sudo -u www-data sudo /home/duke/aa/scripts/test.sh
>>> sudoers file: syntax error, line 22 <<<
sudo: parse error in /etc/sudoers near line 22
vps:~# visudo /etc/sudoers

# /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the man page for details on how to write a sudoers file.
#

Defaults	env_reset

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root	ALL=(ALL) ALL

# Uncomment to allow members of group sudo to not need a password
# (Note that later entries override this, so you might need to move
# it further down)
# %sudo ALL=NOPASSWD: ALL
www-data: ALL=(root) NOPASSWD: /home/duke/aa/scripts/test.sh