How to assign ip address in command mode centos 6

The IP of my computer configuration is 

[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 
 
DEVICE=eth0         (write eth0)
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
IPADDR=172.21.101.47             (assign ip address)
NETMASK=255.255.255.0         (assign netmask)
NETWORK=172.21.101.0         
BROADCAST=172.21.101.255 
GATEWAY=172.21.101.1           (assign gateway)
ONBOOT=yes                           (write ONBOOT=yes)
NETWORKING_IPV6=no

DNS1=10.164.5.176           (assign DNS1)
DNS2=10.164.5.177           (assign DNS2)

:wq !    (save and quit)

Then restart network


[root@localhost ~]# service network restart

Now Verify your system ip

[root@localhost ~]# ifconfig

show your ip below...

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