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Commands using ifconfig from sorted by
Terminal - Commands using ifconfig - 88 results
ifconfig $DEVICE | perl -lne '/inet addr:([\d.]+)/ and print $1'
2009-07-21 13:48:19
User: jdob
Functions: ifconfig perl
Tags: IP
-2
Up
Down
Read just the IP address of a device

Found this useful for scripts where I needed to work with the machine's IP. If $DEVICE is not specified, this will return all IPs on the machine. If $DEVICE is set to a network adapter, it will return just that adapter's IP.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ran=$(head /dev/urandom | md5sum); MAC=00:07:${ran:0:2}:${ran:3:2}:${ran:5:2}:${ran:7:2}; sudo ifconfig wlan0 down hw ether $MAC; sudo ifconfig wlan0 up; echo ifconfig wlan0:0
2009-07-16 16:21:44
User: workingsmart
Functions: echo head ifconfig sudo
Tags: Ubuntu MAC , Wireless, hack, change
6
Up
Down
Resets your MAC to a random MAC address to make you harder to find.

Next time you are leaching off of someone else's wifi use this command before you start your bittorrent ...for legitimate files only of course.

It creates a hexidecimal string using md5sum from the first few lines of /dev/urandom and splices it into the proper MAC address format. Then it changes your MAC and resets your wireless (wlan0:0).

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
echo "-------------" >> nicinfo.txt; echo "computer name x" >> nicinfo.txt; ifconfig | grep status >> nicinfo.txt; ifconfig | grep inet >> nicinfo.txt; ifconfig | grep ether >> nicinfo.txt; hostinfo | grep type >> nicinfo.txt;
2009-06-25 12:32:37
User: miccaman
Functions: echo grep ifconfig type
Tags: Os X ifconfig
-1
Up
Down
get linkspeed, ip-adress, mac-address and processor type from osx

get desired info from machine and pipe it txt file.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ifconfig eth0 down hw ether (newmacaddresshere) && ifconfig eth0 up && ifconfig eth0 (newipaddresshere) netmask 255.255.255.0 up && /bin/hostname (newhostnamehere)
2009-06-04 20:25:49
User: localGhost
Functions: ifconfig
Tags: ifconfig IP hostname mac
-3
Up
Down
Mac, ip, and hostname change - sweet!

The command above has been changed due to very good constructive criticism - thanks x 2! This command can be used after acquiring mac's, ip's and hostname's or any of the above from a freshly scanned LAN. User must be root, and remember to change your settings on your network managing software manually (Fedc10 NetworkManager Applet 0.7.1 is mine) instead of 'auto DHCP'. You can also substitute eth0 for wlan0 etc - be good and ENJOY!

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sudo ifconfig eth0 hw ether 00:01:02:03:04:05
2009-06-04 09:02:35
User: momitov
Functions: ifconfig sudo
Tags: MAC , Wireless, hack, change mac address
6
Up
Down
Change tha mac adresse

eth0 = the name of the interface

00:01:02:03:04:05 = the new mac adresse

the same thing for wireless card $ sudo iwconfig eth1 hw ether 00:01:02:03:04:05

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ifconfig eth0 hw ether 00:11:22:33:44:55
2009-05-11 00:24:42
User: professoralex
Functions: ifconfig
0
Up
Down
change mac address
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ifconfig en1 | awk '/inet / {print $2}' | mail -s "hello world" email@email.com
2009-04-28 06:01:52
User: rez0r
Functions: awk ifconfig mail
Tags: ifconfig awk macosx IP osx mac email
9
Up
Down
sends your internal IP by email

This is useful if you have need to do port forwarding and your router doesn't assign static IPs, you can add it to a script in a cron job that checks if you IP as recently changed or with a trigger script.

This was tested on Mac OSX.

Comments (4) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while true; do ifconfig eth0 | grep "inet addr:"; sleep 60; done;
2009-04-01 19:29:28
User: bandit36
Functions: grep ifconfig sleep
Tags: script while loop
-5
Up
Down
Periodically loop a command

You can use this to loop any command to periodically see the output.

while true; do [YOUR COMMAND HERE]; sleep [# of seconds]; done;

Alternatively, you can put it in a simple shell script to save typing!

#/!bin/bash

while true; do $1; sleep $2; done;

/path/to/script.sh "ifconfig eth0 | grep 'inet addr:'" 60
Show sample output | Comments (8) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while true; do X=$Y; sleep 1; Y=$(ifconfig eth0|grep RX\ bytes|awk '{ print $2 }'|cut -d : -f 2); echo "$(( Y-X )) bps"; done
2009-03-27 08:26:39
User: stuntdawg
Functions: awk cut echo grep ifconfig sleep
Tags: bash Linux ifconfig
10
Up
Down
Measures download speed on eth0
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ifconfig -a | nawk 'BEGIN {FS=" "}{RS="\n"}{ if($1~ /:/) {printf "%s ", $1}}{ if($1=="inet") {print " -- ",system("arp "$2)}}'|egrep -v "^[0-9]$"
2009-03-02 23:15:13
User: leprasmurf
Functions: ifconfig
Tags: bash solaris nawk ifconfig egrep
1
Up
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NICs, IPs, and Mac

Needed to get the Mac of various devices on a solaris box, but didn't have root. This command used awk to display the Network device, the IP, and the MAC a line at a time.

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ifconfig | awk '/inet / {print $2}'
2009-02-27 17:05:08
User: haivu
Functions: awk ifconfig
1
Up
Down
Mac OS X - List all of my machine's IP addresses

On the Mac, the format ifconfig puts out is little different from Linux: the IP address is space separated, instead of colon. That makes parsing the IP address easier. See releated command for Linux/Unix:

http://www.commandlinefu.com/commands/view/651/getting-the-ip-address-of-eth0

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watch ifconfig eth0
2009-02-17 18:48:51
User: kennethreitz
Functions: ifconfig watch
5
Up
Down
Watch Data Usage on eth0
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
ifconfig eth0 | awk '/inet addr/ {split ($2,A,":"); print A[2]}'
2009-02-13 14:02:35
User: sylvain
Functions: awk ifconfig
2
Up
Down
Getting the ip address of eth0
Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate