Commands tagged network performance sorted by votes

Commands tagged network performance (5)

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Show network throughput

Real gurus don't need fancy tools like iftop or jnettop. Show Sample Output
This is sample output - yours may be different.
```
# tcpdump -w - |pv -bert >/dev/null
tcpdump: listening on wlan0, link-type EN10MB (Ethernet), capture size 65535 bytes
 756kB 0:00:12 [67.5kB/s]
```
9

tcpdump -w - |pv -bert >/dev/null

h3xx · 2011-12-14 00:24:02 8
monitor network traffic and throughput in real time

see http://iptraf.seul.org/ for all kinds of documentation and screenshots
This is sample output - yours may be different.
4

iptraf

linuxrawkstar · 2009-12-30 15:41:21 5
Test network performance, copying from the mem of one box, over the net to the mem of another

Note, the [remotePort] should be opened in the firewall first. First, start the destination box listening, then fire off the sending box. Data from the /dev/zero device in memory of the source machine is read out using dd, sent over the network with nc, and read back in from the other side of the network with nc, going to the /dev/null device. Essentially, it is a memory-network-memory copy operation, the output of dd will tell you how fast your network really is performing.
This is sample output - yours may be different.
0

dd if=/dev/zero bs=256M count=1 | nc [remoteIP] [remotePort] and on the other host nc -l port >/dev/null

tkunz · 2009-07-14 20:30:52 4
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 8
Tshark to Generate Top Talkers by #TCP conv started per second.

#_connects src_IP dst_IP When_It_Happened_Secs Show Sample Output
This is sample output - yours may be different.
```
 23 208.127.211.141 170.135.216.181 7
  22 67.142.174.23 170.135.216.181 12
  20 157.93.242.50 170.135.216.181 6
  19 67.142.174.23 170.135.216.181 11
  17 67.160.80.189 170.135.216.181 11
  
```
-1

tshark -qr [cap] -z conv,tcp | awk '{printf("%s:%s:%s\n",$1,$3,$10)}' | awk -F: '{printf("%s %s %s\n",$1,$3,substr($5,1,length($5)-10))}' | sort | uniq -c | sort -nr

knassery · 2012-10-16 06:39:01 5

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convert hex to decimal ; decimal to hex

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

Iterate through current directory + all subs for C++ header files and rank by # of comments

This shows you which files are most in need of commenting (one line of output per file)

Schedule a script or command in x num hours, silently run in the background even if logged out

This is helpful for shell scripts, I use it in my custom php install script to schedule to delete the build files in 3 hours, as the php install script is completely automated and is made to run slow. Does require at, which some environments without crontab still do have. You can add as many commands to the at you want. Here's how I delete them in case the script gets killed. (trapped) atq |awk '{print $1}'|xargs -iJ atrm J &>/dev/null

Symlink all files from a base directory to a target directory

txt2html

Convert Text to HTML

Email someone if a web page has been updated.

A cronjob command line to email someone when a webpages homepage is updated.

find geographical location of an ip address

I save this to bin/iptrace and run "iptrace ipaddress" to get the Country, City and State of an ip address using the http://ipadress.com service. I add the following to my script to get a tinyurl of the map as well: URL=`lynx -dump http://www.ip-adress.com/ip_tracer/?QRY=$1|grep details|awk '{print $2}'` lynx -dump http://tinyurl.com/create.php?url=$URL|grep tinyurl|grep "19. http"|awk '{print $2}'

Set CDPATH to ease navigation

CDPATH tells the cd command to look in this colon-separated list of directories for your destination. My preferred order are 1) the current directory, specified by the empty string between the = and the first colon, 2) the parent directory (so that I can cd lib instead of cd ../lib), 3) my home directory, and 4) my ~/projects directory.

renames multiple files that match the pattern

Useful when you want to quickly rename a bunch of files.

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Commands tagged network performance (5)

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