Display system interface information, add/delete an interface IP address, and add loopback interface in Linux.

build and debug

make

usage

./intf_managment show    

sudo ./intf_managment interface {INTF} {add/del} {ip/mask}   
or   
sudo ./intf_managment interface {INTF} {add/del} {ip} {mask}   

sudo ./intf_managment interface create loopback {INTF}