Arch Linux

colbert

Member

Registered: 2007-12-16

Posts: 809

How to show public ip in shell?

I can see my network ips (192.x.x.x) fine w/ifconfig and such but how can I show my public ip in shell?? Other than lynx and going to whatismyip.com or some such method, perhaps a script or app, thx

P.S. I tried my-ip from AUR but I think it's abandoned, the makepkg could not find the archive for dling.

TIA for any help everyone

Inxsible

Forum Fellow

From: Chicago

Registered: 2008-06-09

Posts: 9,183

Re: How to show public ip in shell?

I can see my network ips (192.x.x.x) fine w/ifconfig and such but how can I show my public ip in shell?? Other than lynx and going to whatismyip.com or some such method, perhaps a script or app, thx

P.S. I tried my-ip from AUR but I think it's abandoned, the makepkg could not find the archive for dling.

TIA for any help everyone

Try this command

wget http://checkip.dyndns.org/ -O - -o /dev/null | cut -d: -f 2 | cut -d\< -f 1

That's straight out my bashrc. You could use any other website that you like as well.

Last edited by Inxsible (2008-08-18 21:19:57)

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colbert

Member

Registered: 2007-12-16

Posts: 809

Re: How to show public ip in shell?

Wow, that works perfect, that's awesome! Hate to prod but would you mind explaining that command a little bit?? I tried substituting "http://www.whatismyip.com" but got a bunch of random lines from the site.

Thx so much!

arch0r

Member

From: From the Chron-o-John

Registered: 2008-05-13

Posts: 597

Re: How to show public ip in shell?

shorter one:
echo `wget -q -O - http://www.whatismyip.org`

colbert

Member

Registered: 2007-12-16

Posts: 809

Re: How to show public ip in shell?

Ooh that works too, more than one way to skin a cat huh? Thx!

arch0r

Member

From: From the Chron-o-John

Registered: 2008-05-13

Posts: 597

Re: How to show public ip in shell?

hrhr, it's always easier as you think :>

to avoid these "random lines" you use the -q (quiet) option and -O prints the output not in a file but in your console

Last edited by arch0r (2008-08-18 21:37:40)

rson451

Member

From: Annapolis, MD USA

Registered: 2007-04-15

Posts: 1,233

Website

Re: How to show public ip in shell?

There is a specific page on whatismyip that is to be used for scripts to save bandwidth.  Please use this page instead.  http://whatismyip.com/automation/n09230945.asp

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Inxsible

Forum Fellow

From: Chicago

Registered: 2008-06-09

Posts: 9,183

Re: How to show public ip in shell?

Wow, that works perfect, that's awesome! Hate to prod but would you mind explaining that command a little bit?? I tried substituting "http://www.whatismyip.com" but got a bunch of random lines from the site.

Thx so much!

The .com gives you an html page with all the fancy formatting. If you just want the ip address on console it would be much better to use the .org extension or the automation link that rson provided. They both amount to the same thing.

Note that if you use arch0r's command, you will get a bunch of HTML tags if you use the dyndns site. Suffice to say that every site (which tells you your IP address) has a different way of responding to a request. They send out data in different formats so you will have to customize your command according to the output given by the website that you plan on using.

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Factory

Member

Registered: 2008-02-24

Posts: 108

Re: How to show public ip in shell?

There is a specific page on whatismyip that is to be used for scripts to save bandwidth.  Please use this page instead.  http://whatismyip.com/automation/n09230945.asp

Ah, well now that's nice to know. Thanks!

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pete-the-meat

Member

From: Scotland

Registered: 2008-08-14

Posts: 26

Re: How to show public ip in shell?

That's super useful - thanks!

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That looks like a much better way of trying to do what I was trying to do than trying to do what I was trying to do...

colbert

Member

Registered: 2007-12-16

Posts: 809

Re: How to show public ip in shell?

Yes thanks rson451, that's great!

Misfit138

Misfit Emeritus

From: USA

Registered: 2006-11-27

Posts: 4,189

Re: How to show public ip in shell?

Curl is the easiest, by far:

$ curl www.whatismyip.org

Enjoy.

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