Finding EV3dev IP address

EV3 is connected to internet via USB cable to laptop. 
Tested with :
Laptop: Ethernet plug-in connection to internet 
EV3 :    usb cable to laptop sharing laptop's internet

Use ssh to log into the EV3DEV  (id: robot password: maker)

Started with: Determine Your Private and Public IP Addresses from the Command Line but needed to replace eth0 with usb1

Displaying private IP addresses

Note: Host laptop has different private IP address

$ hostname -I
Result: 192.168.137.3

$ /sbin/ifconfig
Result: usb1      Link encap:Ethernet  HWaddr 22:16:53:51:62:2f
  inet addr:192.168.137.3  ...

$ /sbin/ifconfig usb1 | grep Mask
Result:  inet addr:192.168.137.3  Bcast:192.168.137.255  Mask:255.255.255.0 .....

$ ip addr show usb1
result: 
3: usb1: ....
    link/ether...
    inet 192.168.137.3/24 ....
    ....

$ ip addr show usb1 | grep 'inet ' | awk '{print $2}' | cut -f1 -d'/'
result: 192.168.137.3

Displaying the public IP address

Note: Host laptop has same public IP address

http://www.ifconfig.me  (etc)
[curl not installed on ev3dev]

$ wget -qO- ifconfig.me
search for ip_address