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vi_	2011-05-31 , 20:06
Posts: 1,680 \| Thanked: 3,685 times \| Joined on Jan 2011	#1

I know that you, like me have yearned for a totally awesome way to get your current IP address in a script that doesnt totally suck balls. Here I present my script to retrieve your current IP, if you have no IP (disconnected) it will display the word disconnected.

Why is this better than the IP script in DCEW?

this is better because it displays your INTERNAL IP irrespective of what interface is in use(wlan, gprs, usb)

It is a total mad bro style one liner.

It can be used as a DCEW, a QBW or a function in another script.

If you can think of a better 1-liner to get your current IP, then post it up, I dare you.

Code:

ifconfig $(route 2&>/dev/null | awk '{ field = $NF }; END{ print field }') >/dev/null && ifconfig $(route | awk '{ field = $NF }; END{ print field }') | egrep -o 'dr:[^ ]+'|sed 's/dr://g' || echo "127.0.0.1"

__________________

N900: One of God's own prototypes. A high-powered mutant of some kind never even considered for mass production. Too weird to live, and too rare to die.

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HoX	2011-05-31 , 21:46
Posts: 114 \| Thanked: 45 times \| Joined on Oct 2009 @ Turin, Italy	#2

I didn't test it on the phone, but on my computer it works well

Code:

ifconfig ${iface} | sed -ne "s/.*inet addr:\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\).*/\1/p"

If you want to get the address of a specific interface, you should simply define the ${iface} variable.

NB: it works ONLY with IPv4 address.

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vi_	2011-05-31 , 22:07
Posts: 1,680 \| Thanked: 3,685 times \| Joined on Jan 2011	#3

Originally Posted by HoX

I didn't test it on the phone, but on my computer it works well
Code:
ifconfig ${iface} | sed -ne "s/.*inet addr:$[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*$.*/\1/p"
If you want to get the address of a specific interface, you should simply define the ${iface} variable.

NB: it works ONLY with IPv4 address.

IPv4, yeah forgot about that however you could just change the regex to include ipv6.

Your script doesnt work the same way. it returns the loopback address as well as the connected address. I tried this type of approach first however ONLY wanted to receive the current IP, in 1 line with NO loopback. This allows it to work in DCEW.

__________________

N900: One of God's own prototypes. A high-powered mutant of some kind never even considered for mass production. Too weird to live, and too rare to die.

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HoX	2011-05-31 , 22:21
Posts: 114 \| Thanked: 45 times \| Joined on Oct 2009 @ Turin, Italy	#4

I'm sorry, but I don't know what "DCEW" means.
However, if you don't want the loopback device, you could "grep-it-out":

Code:

ifconfig ${iface} | sed -ne "s/.*inet addr:\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\).*/\1/p" | grep -v "127.0.0.1"

Otherwise, to get all the interfaces IP, but the loopback device:

Code:

ifconfig | sed -ne "s/^\([A-Za-z0-9]\+\).*/\1/p" | while read iface  ; do [ ${iface} != "lo" ] && ifconfig ${iface} ; done | sed -ne "s/.*inet addr:\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\).*/\1/p"

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	JonWW	2011-06-01 , 09:25
	Posts: 623 \| Thanked: 289 times \| Joined on Jan 2010 @ UK	#5

Originally Posted by vi_

If you can think of a better 1-liner to get your current IP, then post it up, I dare you.

You dare us do you!

Ok I dare; five commands all piped:

Code:

ifconfig `ifconfig|grep -o wlan0`|grep -m1 't a'|sed 's/.*r://;s/ .*//'

and if you want your 'Disconnected' message, then bung this sixth command on the end::

Code:

|sed 's/127.0.0.1/Disconnected/'

and if you are not root (ie QBW):

Code:

echo "ifconfig `echo ifconfig|root|grep -o wlan0`|grep -m1 't a'|sed 's/.*r://;s/ .*//'"|root

Having waste four hours of my life in front of the tele last night trying to sort this, I dare you back to shorten it!

Oh vi_, yours throws a route usage error for me if run in XTerm! And fails if not connected.

Code:

Nokia-N900:~# ifconfig $(route 2&>/dev/null | awk '{ field = $NF }; END{ print field }') >/dev/null && ifconfig $(route | awk '{ field = $NF }; END{ print field }') | egrep -o 'dr:[^ ]+'|sed 's/dr://g' || echo "127.0.0.1"
BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) multi-call binary

Usage: route [{add|del|delete}]

ifconfig: Iface: error fetching interface information: Device not found

HoX DCEW = Desktop Command Execution Widget