Title: Port of the week: bwm-ng

	Title: Port of the week: bwm-ng
	Author: Solène
	Date: 06 May 2016
	Tags: portoftheweek networking
	Description:

	I am starting a periodic posting for something I wanted to do since a
	long time. Take a port in the tree and introduce it quickly. There are
	tons of ports in the tree that we don't know about. So, I will write
	frequently about ports that I use frequently and that I find useful,
	if you read this, maybe I will find a new tool to your collection of
	"useful program". :-)

	For a first one, I would like to present net/bwm-ng. Its name
	stands for “_BandWitch Monitor next-generation_”, it allows the
	user
	to watch in real-time the bandwith usage of the different network
	interfaces. By default, it will update the display every 0.5
	second. You can change the frequency of updating by pressing keys '+'
	and '-'.

	Let see the bindings of the interactive mode :

	- 't' will cycle between current rate, maximum peak, sum, average
	on 30 seconds.
	- 'n' will cycle between data sources, on OpenBSD it defaults to
	"getifaddrs" and you can also choose "sysctl" or "netstat -i".
	- 'd' will change the unit, by default it shows KB but you can
	change to another units that suits better your current data.

	Summary output after downloading a file

	input: getifaddrs type: sum
	- iface Rx Tx
	Total

	=======================================================================
	=======
	lo0: 0.00 B 0.00 B
	0.00 B
	em0: 19.89 MB 662.82 KB
	20.54 MB
	pflog0: 0.00 B 0.00 B
	0.00 B

	-----------------------------------------------------------------------
	-------
	total: 19.89 MB 662.82 KB
	20.54 MB

	It's available on *BSD, Linux and maybe others.

	In OpenBSD ports tree, look for net/bwm-ng.