cat /etc/vsftpd.conf | grep -q '#Initialized' && exit 0

sed -i '/^#.*/d' /etc/vsftpd.conf 
sed -i '1i#Initialized' /etc/vsftpd.conf
sed -i 's/listen=YES/listen=NO/' /etc/vsftpd.conf
sed -i 's/anonymous_enable=NO/anonymous_enable=YES/' /etc/vsftpd.conf
echo 'anon_mkdir_write_enable=YES' >> /etc/vsftpd.conf
echo 'anon_other_write_enable=YES' >> /etc/vsftpd.conf
echo 'allow_writeable_chroot=YES' >> /etc/vsftpd.conf
echo 'anon_upload_enable=YES' >> /etc/vsftpd.conf