Commands using ifconfig (103)
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-2ifconfig | grep "inet addr" | cut -d: -f2 | cut -d' ' -f1
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-2sudo ifconfig -a | grep eth | grep HW | cut -d' ' -f11
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-2ifconfig eth0 | grep "inet:" | cut -d ":" -f2 | cut -d " " -f1
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Get the line containing "inet addr:" and the line before that, get down to only the first line, and then get the first word on that line, which should be the interface. Show Sample Output
-2ifconfig | grep -B 1 "inet addr:" | head -1 | cut -d" " -f1 -
Easy way to grab the IP address of a machine for easy script use. If needed a "| grep -v 127.0.0.1" at the end will suppress localhost. Show Sample Output
-2ifconfig | awk '/inet addr/ {print $2 }' | sed 's/.*://g' -
-2ifconfig eth0 | grep 'HWaddr' | awk '{print $5}'
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This is what we use. You can grep -v 127.0.0.1 if you wish.
-2ifconfig | grep -o "inet [^ ]*" | cut -d: -f2 -
This command is useful when you want to check your nic's mac address, if you're interested in your wireless interface, use its ID instead "eth". This command was tested under Ubuntu and Slackware GNU/Linux. Show Sample Output
-2ifconfig | grep eth | awk '{print $5}' -
If you don't send an interface, it shows private IP address of all interfaces
-2localIP() { ifconfig ${1:--a} | sed '/Link encap\|inet\|6 addr/!d;s/Link encap.*$//;s/.*inet addr:\([0-9\.]*\).*/\1/g;s/.*inet6 addr: \(.*\) .*/\1/g' ; } -
-2ifconfig | awk -F"[: ]+" '/inet addr/ {print $4}'
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-2ifconfig -a | awk '/Bcast/{print $2}' | cut -c 5-19
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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!
-3ifconfig eth0 down hw ether (newmacaddresshere) && ifconfig eth0 up && ifconfig eth0 (newipaddresshere) netmask 255.255.255.0 up && /bin/hostname (newhostnamehere) -
Gets the internal and external IP addresses of all your interfaces, or the ones given as arguments Show Sample Output
-3ips(){ for if in ${1:-$(ip link list|grep '^.: '|cut -d\ -f2|cut -d: -f1)};do cur=$(ifconfig $if|grep "inet addr"|sed 's/.*inet addr:\([0-9\.]*\).*/\1/g');printf '%-5s%-15s%-15s\n' $if $cur $(nc -s $cur sine.cluenet.org 128 2>/dev/null||echo $cur);done;} -
grabs your local IP Address. Show Sample Output
-3ifconfig -a|grep Bcast:|cut -d\: -f2|awk '{print $1}' -
-3awk '/inet end/ {print $3}' <(ifconfig eth0)
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This doesn't make any assumptions about your IP address and prints out one IP address per line if you have multiple network interfaces. Show Sample Output
-3ifconfig | sed '/.*addr.*Bcast.*/ ! d'| sed 's/.*addr:\([0-9\.]*\).*/\1/' -
-3ifconfig | awk '/inet addr/ &&! /127.0.0.1/{ gsub(/addr:/,""); print $2 }'
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gets the last number of the mac address to use it for other stuff Show Sample Output
-3UNIQUE_BY_MAC=$(ifconfig |grep eth0|awk '{ print strtonum("0x"substr($6,16,2)) }') -
This will get the mac address of the eth0 and change lowercase to uppercase. The sed command removed the colons.
-3ifconfig eth0 | grep 'HWaddr' | awk '{print $5}' | tr 'a-z' 'A-Z' | sed -e 's/://g' -
short enough to be tweetable Show Sample Output
-3ifconfig | grep "inet\ " | grep -v "127.0" | sed -e 's/inet\ addr://g' | sed -e 's/Bcast:/\ \ \ \ \ \ \ /g' | cut -c 1-29 | sed -e 's/\ //g' -
-3ifconfig | grep "inet addr" | cut -d":" -f2 | cut -d" " -f1
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-3ifconfig -a | awk '/Bcast/{print $2}' | cut -c 5-19
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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:'" 60Show Sample Output-5while true; do ifconfig eth0 | grep "inet addr:"; sleep 60; done; -
HP UX doesn't have a -a switch in the ifconfig command. This line emulates the same result shown in Solaris, AIX or Linux Show Sample Output
-5for i in `netstat -rn |grep lan |cut -c55-60 |sort |uniq`; do ifconfig $i; done -
This assumes your local ip starts with 192.something (e.g. 192.168), it greps ifconfig output for an ip that starts with 192, then strips the extra garbage (besides the ip) Maybe `ifconfig | grep addr | grep Bcast` would also do it Show Sample Output
-5ifconfig | grep addr:192 | sed s/Bcast.*// | sed 's/^.*inet addr://' - ‹ First < 2 3 4 5 >
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