opkg update
opkg install davfs2

sed -i 's/.*dav_user.*/dav_user\tnobody/' /etc/davfs2/davfs2.conf
sed -i 's/.*dav_group.*/dav_group\tnogroup/' /etc/davfs2/davfs2.conf

echo "use_locks 0" >> /etc/davfs2/davfs2.conf

mkdir -p /var/cache/davfs2
mkdir -p /mnt/box

mount.davfs https://www.box.com/dav/ /mnt/box

 Please enter the username to authenticate with server
https://www.box.com/dav/ or hit enter for none.
  Username:

Please enter the password to authenticate user xxxxxx with server
https://www.box.com/dav/ or hit enter for none.
  Password: 

mount.davfs: the server certificate is not trusted
  issuer:      GeoTrust, Inc., US
  subject:     Box.net, Inc., Palo Alto, California, US, ts5jamwzcjWP0oTyh2m74yh0zsB2zyOR
  identity:    *.box.com
  fingerprint: ca:bd:64:fd:6b:84:5f:5d:35:98:12:fe:a6:1c:4e:55:5e:7f:57:f5
You only should accept this certificate, if you can
verify the fingerprint! The server might be faked
or there might be a man-in-the-middle-attack.
Accept certificate for this session? [y,N]

https://www.box.com/dav/ on /mnt/box type fuse (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,max_read=16384)

mount.davfs https://www.box.com/dav/ /mnt/box

echo "y" | mount.davfs https://www.box.com/dav/ /mnt/box

cp /tmp/usage.db /mnt/box

cp nazwa_pliku /mnt/box

cp * /mnt/box

cp: cannot create '/mnt/box/bdist2-download-900-24.bw': Permission denied
cp: cannot create '/mnt/box/bdist3-download-hour-24.bw': Permission denied
cp: cannot create '/mnt/box/total1-download-2-449.bw': File exists
cp: cannot create '/mnt/box/total2-download-minute-359.bw': File exists
cp: cannot create '/mnt/box/total3-download-180-479.bw': Permission denied

root@Gargoyle:/tmp/data/bwmon$ ls -l -h /tmp/usage.db
-rw-------    1 root     root          300 Nov 30 09:05 /tmp/usage.db
root@Gargoyle:/tmp/data/bwmon$ ls -l
-rw-------    1 root     root          409 Nov 30 08:00 bdist1-download-minute-15.bw
-rw-------    1 root     root          364 Nov 30 08:00 bdist2-download-900-24.bw
-rw-------    1 root     root          679 Nov 30 08:00 bdist3-download-hour-24.bw
-rw-------    1 root     root         1854 Nov 30 08:00 total1-download-2-449.bw
-rw-------    1 root     root         1494 Nov 30 08:00 total2-download-minute-359.bw
-rw-------    1 root     root         1974 Nov 30 08:00 total3-download-180-479.bw

mount.davfs https://dav.box.com/dav/ /mnt/box

 cache_size      50                # MiByte"

cache_dir       /var/cache/davfs2 # system wide cache