You can do this from the Linux prompt as follows. The value you want is in bold. I hope to be using this a lot in future posts:
UBUNTU: ifconfig
eth0 Link encap:Ethernet HWaddr 00:0c:6e:e7:f1:92
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:19 Base address:0x9800
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2102 errors:0 dropped:0 overruns:0 frame:0
TX packets:2102 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:217564 (217.5 KB) TX bytes:217564 (217.5 KB)
wlan0 Link encap:Ethernet HWaddr 00:14:6c:8a:f4:72
inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::214:6cff:fe8a:f472/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:39507 errors:0 dropped:0 overruns:0 frame:0
TX packets:37777 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:39342715 (39.3 MB) TX bytes:7605863 (7.6 MB)
UBUNTU:
