hostname을 이용한 자신의 아이피 받아오기

hostname을 이용해서 자기 자신의 아이피 를 받아 올수 있다.

$ hostname -i 127.0.0.1 $ hostname -I 192.168.10.11

-i, --ip-address Display the IP address(es) of the host. Note that this works only if the host name can be resolved. Avoid using this option; use hostname --all-ip-addresses instead.  -I, --all-ip-addresses Display all network addresses of the host. This option enumerates all configured addresses on all network interfaces. The loopback interface and IPv6 link-local addresses are omitted. Contrary to option -i, this option does not depend on name resolution. Do not make any assumptions about the order of the output.

[링크 : https://linux.die.net/man/1/hostname]

[링크 : http://stackoverflow.com/.../how-to-i-get-the-primary-ip-address-of-the-local-machine-on-linux-and-os-x]