Commands tagged interface sorted by votes

Commands tagged interface (8)

sorted by

sniff network traffic on a given interface and displays the IP addresses of the machines communicating with the current host (one IP per line)
This is sample output - yours may be different.
22

sudo tcpdump -i wlan0 -n ip | awk '{ print gensub(/(.*)\..*/,"\\1","g",$3), $4, gensub(/(.*)\..*/,"\\1","g",$5) }' | awk -F " > " '{print $1"\n"$2}'

tweet78 · 2014-04-11 22:41:32 0
Watch RX/TX rate of an interface in kb/s

Just a simple way without the need of additional tools. Of course, replace eth0 with your IF. Show Sample Output
This is sample output - yours may be different.
```
in:   4.1e+03           out:        88
```
15

while [ /bin/true ]; do OLD=$NEW; NEW=`cat /proc/net/dev | grep eth0 | tr -s ' ' | cut -d' ' -f "3 11"`; echo $NEW $OLD | awk '{printf("\rin: % 9.2g\t\tout: % 9.2g", ($1-$3)/1024, ($2-$4)/1024)}'; sleep 1; done

hons · 2011-03-22 10:02:23 3
network interface and routing summary
This is sample output - yours may be different.
6

nmap --iflist

bandie91 · 2013-06-22 10:50:43 1
Grab IP address on machine with multiple interfaces

Instead of hard-coding in a check to scrape info from ifconfig based on a specific interface, do it in a more portable way. This works really well if you switch between wired, wireless, bluetooth or even VPN connections. You can get your current IP in a script (since it'll be something like tun0 instead of eth0 or wlan1). This uses a well known public ip address 8.8.8.8, but it doesn't actually connect to it, it just shows you the route it would take. Show Sample Output
This is sample output - yours may be different.
```
10.10.10.21
```
2

ip route get 8.8.8.8 2>/dev/null|grep -Eo 'src [0-9.]+'|grep -Eo '[0-9.]+'

intangible · 2012-10-14 02:06:13 1
Watch RX/TX rate of an interface in kb/s

A shorter version Show Sample Output
This is sample output - yours may be different.
```
in:    462.78           out:     11.38
```
1

while cat /proc/net/dev; do sleep 1; done | awk '/eth0/ {o1=n1; o2=n2; n1=$2; n2=$10; printf "in: %9.2f\t\tout: %9.2f\r", (n1-o1)/1024, (n2-o2)/1024}'

quadcore · 2011-03-26 02:52:14 0
Watch RX/TX rate of an interface in kb/s
This is sample output - yours may be different.
0

while :; do OLD=$NEW; NEW=`cat /proc/net/dev | grep eth0 | tr -s ' ' | cut -d' ' -f "3 11"`; echo $NEW $OLD | awk '{printf("\rin: % 9.2g\t\tout: % 9.2g", ($1-$3)/1024, ($2-$4)/1024)}'; sleep 1; done

DerksIT · 2011-03-22 10:23:33 0
List ethernet ports speed

It will list your machine's ethernet ports speed Show Sample Output
This is sample output - yours may be different.
```
eth0:   Speed: 1000Mb/s
eth1:   Speed: 1000Mb/s
eth2:   Speed: 10000Mb/s
eth3:   Speed: 10000Mb/s
```
0

for d in $(cd /sys/class/net && echo eth?) ; do echo "$d: $(ethtool $d |grep -w Speed)"; done

bassiek · 2014-12-28 15:47:46 0
Get all interfaces name

Show Sample Output
This is sample output - yours may be different.
```
lo
eno1
wlp0s29u1u5
```
0

ip addr | sed '/^[0-9]/!d;s/: <.*$//;s/^[0-9]: //'

bonaff · 2015-04-12 12:58:56 0

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Shows users and 'virtual users' on your a unix-type system

Shows a list of users that currently running processes are executing as. YMMV regarding ps and it's many variants. For example, you might need: $ ps -axgu | cut -f1 -d' ' | sort -u

Get size of terminal

See the cols and lines and make sure the console it correctly configured for the screen size.

Chage default shell for all users [FreeBSD]

This command will set bash as the default shell for all users in a FreeBSD system.

google chart api

Convert Youtube videos to MP3

Make your own MP3s from Youtube videos.

Synchronize date and time with a server over ssh

If you are stuck behind a firewall and want to synchronize time with another server but you do not want to port forward NTP (which uses UDP) then this command is handy. It gets the time from a server and sets the local time. It is not that accurate but I can live with a second or so drift.

list services running (as root)

A quick way to list services running

check open ports without netstat or lsof

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Check if system is 32bit or 64bit

Needed a quick way to see if my server distro that I setup years ago was running 32bit or not, since with time I had forgotten. Note: does not check _hardware_ e.g. /proc/cpuinfo but rather the kernel installed

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands tagged interface

Commands tagged interface (8) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

Commands tagged interface (8)

sorted by