1. type /sbin/ifconfig
2. ifconfig is the command to be used to find out the information you seek to find. Check out these links for more information

   http://en.wikipedia.org/wiki/ifconfig…
   http://www.die.net/doc/linux/man/man8/if…

3. use ifconfig command to find IP address if you are root user.
   if you are not a root user then you can use /sbin/ifconfig command.

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