docs/nload.1.in - net/nload - Rivoreo Source Code Repositories

 .\"
 .\" Man page for nload
 .\" Copyright (C) 2001 - 2011 by Roland Riegel <feedback@roland.riegel.de>
 .\"
 .TH nload 1 "June 12, 2011" nload "Network monitoring tools"
 .SH NAME
 nload \- displays the current network usage

 .SH SYNOPSIS
 .B nload
 .RB [ \-a
 .IR period ]
 .RB [ \-i
 .IR max_scaling ]
 .RB [ \-m ]
 .RB [ \-o
 .IR max_scaling ]
 .RB [ \-t
 .IR interval ]
 .RB [ \-u
 .IR h|H|b|B|k|K|m|M|g|G ]
 .RB [ \-U
 .IR h|H|b|B|k|K|m|M|g|G ]
 .RI [ devices ]

 .B nload \-\-help|\-h

 .SH DESCRIPTION
 .B nload
 is a console application which monitors network traffic and bandwidth usage in real time.
 It visualizes the in- and outgoing traffic using two graphs and provides additional info
 like the total amount of transfered data and min/max network usage.

 .SH USAGE
 When running
 .B nload,
 you can switch between the devices (which you gave
 .B nload
 either on the command line or which were auto-detected) by pressing the left and right arrow keys. If the
 .B \-m
 command line parameter is given, the arrow keys switch as many devices back and forth as
 there are shown on the screen. If you want to quit, do so by pressing 'q' or 'Ctrl+C'.

 For further key shortcuts, have a look at the sections
 .B MAIN WINDOW
 and
 .B OPTION WINDOW
 below.

 .SH OPTIONS
 A summary of the options supported by
 .B nload
 is included below.

 .TP
 .B \-a period
 Sets the length in seconds of the time window for average calculation.
 The default is 300.
 .TP
 .B \-i max_scaling
 Specifies the 100% mark in kBit/s of the graph indicating the incoming bandwidth usage.
 Ignored if max_scaling is 0 or the switch \-m is given. The default value for max_scaling
 is 10240.
 .TP
 .B \-m
 Show multiple devices at a time; do not show the traffic graphs.
 .TP
 .B \-o max_scaling
 Same as \-i but for the graph indicating the outgoing bandwidth usage.
 .TP
 .B \-t interval
 Determines the refresh interval of the display in milliseconds.
 The default value of interval is 500.

 PLEASE NOTE:
 Specifying refresh intervals shorter than about 100 milliseconds makes traffic
 calculation very unprecise. Also the display may flicker using such short
 refresh intervals.
 .B nload
 tries to balance this out by doing extra time measurements, but this may
 not always succeed.
 .TP
 .B \-u h|H|b|B|k|K|m|M|g|G
 Sets the type of unit used for the display of traffic numbers.
 h means human readable (auto), b Bit/s, k kBit/s, m MBit/s and g GBit/s.
 The upper case letters mean the corresponding units in Bytes (instead of Bits).
 The default is k.
 .TP
 .B \-U h|H|b|B|k|K|m|M|g|G
 Same as \-u, but for an amount of data, e.g. Bit, kByte, GBit etc. (without "/s").
 The default is M.
 .TP
 .B devices
 Network devices to use. The default is "all", which means to display all auto-detected devices.
 .TP
 .B \-h, \-\-help
 Show a short summary of these command line options.

 .SH MAIN WINDOW
 After starting,
 .B nload
 begins to monitor the network devices given on the
 command line, or, if none where specified, the default device. In this mode,
 the following key shortcuts are available.

 .TP
 .B 'ArrowRight', 'ArrowDown', 'PageDown', 'Enter', 'Tab'
 Switch the display to the next network device, or, when started with the
 .B \-m
 flag, to the next page of devices.

 .TP
 .B 'ArrowLeft', 'ArrowUp', 'PageUp'
 Switch the display to the previous network device, or, when started with
 the
 .B \-m
 flag, to the previous page of devices.

 .TP
 .B 'F2'
 Show the option window (see section
 .B OPTION WINDOW
 below).

 .TP
 .B 'F5'
 Save current settings to the user's config file.

 .TP
 .B 'F6'
 Reload settings from the config files.

 .TP
 .B 'q', 'Ctrl+C'
 Quit
 .BR nload .

 .SH OPTION WINDOW
 The parameters given to
 .B nload
 on the command line can be adjusted during run time by pressing the 'F2' key. A
 small window appears on the top of the screen, listing the available settings.

 .TP
 .B 'F2'
 Show/hide the option window.

 .TP
 .B 'ArrowLeft', 'ArrowRight', 'Home', 'End'
 Navigate within the edit fields.

 .TP
 .B 'ArrowUp', 'ArrowDown', 'Enter'
 Navigate between the settings.

 .TP
 .B 'PageUp', 'PageDown', 'Tab'
 Toggle between the different values possible for the current field.

 .TP
 .B '+' / '-'
 Switch to the next / previous page of settings.

 .SH FILES

 .TP
 .I /etc/nload.conf
 System-wide configuration file.

 .TP
 .I $(HOME)/.nload
 User-specific configuration file (overrides system-wide settings).

 .TP
 .I /sys/class/net/*/* /proc/net/dev
 are read by
 .B nload
 when running on Linux to get the network traffic data.

 .SH VERSION
 This manual page describes version @VERSION@ of
 .BR nload .

 For updates, look at the nload homepage:
 .br
 .B http://www.roland-riegel.de/nload/

 .SH HELP
 If you need help, either contact me directly (see below) or write to the
 nload-user mailing list at
 .br
 .B nload-user@lists.sourceforge.net
 .br
 after having subscribed at
 .br
 .BR https://lists.sourceforge.net/lists/listinfo/nload-user .

 .SH AUTHOR
 Copyright (C) 2001 - 2011 Roland Riegel <feedback@roland-riegel.de>

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
	.\"
	.\" Man page for nload
	.\" Copyright (C) 2001 - 2011 by Roland Riegel <feedback@roland.riegel.de>
	.\"
	.TH nload 1 "June 12, 2011" nload "Network monitoring tools"
	.SH NAME
	nload \- displays the current network usage

	.SH SYNOPSIS
	.B nload
	.RB [ \-a
	.IR period ]
	.RB [ \-i
	.IR max_scaling ]
	.RB [ \-m ]
	.RB [ \-o
	.IR max_scaling ]
	.RB [ \-t
	.IR interval ]
	.RB [ \-u
	.IR h\|H\|b\|B\|k\|K\|m\|M\|g\|G ]
	.RB [ \-U
	.IR h\|H\|b\|B\|k\|K\|m\|M\|g\|G ]
	.RI [ devices ]

	.B nload \-\-help\|\-h

	.SH DESCRIPTION
	.B nload
	is a console application which monitors network traffic and bandwidth usage in real time.
	It visualizes the in- and outgoing traffic using two graphs and provides additional info
	like the total amount of transfered data and min/max network usage.

	.SH USAGE
	When running
	.B nload,
	you can switch between the devices (which you gave
	.B nload
	either on the command line or which were auto-detected) by pressing the left and right arrow keys. If the
	.B \-m
	command line parameter is given, the arrow keys switch as many devices back and forth as
	there are shown on the screen. If you want to quit, do so by pressing 'q' or 'Ctrl+C'.

	For further key shortcuts, have a look at the sections
	.B MAIN WINDOW
	and
	.B OPTION WINDOW
	below.

	.SH OPTIONS
	A summary of the options supported by
	.B nload
	is included below.

	.TP
	.B \-a period
	Sets the length in seconds of the time window for average calculation.
	The default is 300.
	.TP
	.B \-i max_scaling
	Specifies the 100% mark in kBit/s of the graph indicating the incoming bandwidth usage.
	Ignored if max_scaling is 0 or the switch \-m is given. The default value for max_scaling
	is 10240.
	.TP
	.B \-m
	Show multiple devices at a time; do not show the traffic graphs.
	.TP
	.B \-o max_scaling
	Same as \-i but for the graph indicating the outgoing bandwidth usage.
	.TP
	.B \-t interval
	Determines the refresh interval of the display in milliseconds.
	The default value of interval is 500.

	PLEASE NOTE:
	Specifying refresh intervals shorter than about 100 milliseconds makes traffic
	calculation very unprecise. Also the display may flicker using such short
	refresh intervals.
	.B nload
	tries to balance this out by doing extra time measurements, but this may
	not always succeed.
	.TP
	.B \-u h\|H\|b\|B\|k\|K\|m\|M\|g\|G
	Sets the type of unit used for the display of traffic numbers.
	h means human readable (auto), b Bit/s, k kBit/s, m MBit/s and g GBit/s.
	The upper case letters mean the corresponding units in Bytes (instead of Bits).
	The default is k.
	.TP
	.B \-U h\|H\|b\|B\|k\|K\|m\|M\|g\|G
	Same as \-u, but for an amount of data, e.g. Bit, kByte, GBit etc. (without "/s").
	The default is M.
	.TP
	.B devices
	Network devices to use. The default is "all", which means to display all auto-detected devices.
	.TP
	.B \-h, \-\-help
	Show a short summary of these command line options.

	.SH MAIN WINDOW
	After starting,
	.B nload
	begins to monitor the network devices given on the
	command line, or, if none where specified, the default device. In this mode,
	the following key shortcuts are available.

	.TP
	.B 'ArrowRight', 'ArrowDown', 'PageDown', 'Enter', 'Tab'
	Switch the display to the next network device, or, when started with the
	.B \-m
	flag, to the next page of devices.

	.TP
	.B 'ArrowLeft', 'ArrowUp', 'PageUp'
	Switch the display to the previous network device, or, when started with
	the
	.B \-m
	flag, to the previous page of devices.

	.TP
	.B 'F2'
	Show the option window (see section
	.B OPTION WINDOW
	below).

	.TP
	.B 'F5'
	Save current settings to the user's config file.

	.TP
	.B 'F6'
	Reload settings from the config files.

	.TP
	.B 'q', 'Ctrl+C'
	Quit
	.BR nload .

	.SH OPTION WINDOW
	The parameters given to
	.B nload
	on the command line can be adjusted during run time by pressing the 'F2' key. A
	small window appears on the top of the screen, listing the available settings.

	.TP
	.B 'F2'
	Show/hide the option window.

	.TP
	.B 'ArrowLeft', 'ArrowRight', 'Home', 'End'
	Navigate within the edit fields.

	.TP
	.B 'ArrowUp', 'ArrowDown', 'Enter'
	Navigate between the settings.

	.TP
	.B 'PageUp', 'PageDown', 'Tab'
	Toggle between the different values possible for the current field.

	.TP
	.B '+' / '-'
	Switch to the next / previous page of settings.

	.SH FILES

	.TP
	.I /etc/nload.conf
	System-wide configuration file.

	.TP
	.I $(HOME)/.nload
	User-specific configuration file (overrides system-wide settings).

	.TP
	.I /sys/class/net// /proc/net/dev
	are read by
	.B nload
	when running on Linux to get the network traffic data.

	.SH VERSION
	This manual page describes version @VERSION@ of
	.BR nload .

	For updates, look at the nload homepage:
	.br
	.B http://www.roland-riegel.de/nload/

	.SH HELP
	If you need help, either contact me directly (see below) or write to the
	nload-user mailing list at
	.br
	.B nload-user@lists.sourceforge.net
	.br
	after having subscribed at
	.br
	.BR https://lists.sourceforge.net/lists/listinfo/nload-user .

	.SH AUTHOR
	Copyright (C) 2001 - 2011 Roland Riegel <feedback@roland-riegel.de>

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.