VNSTATI(1)User Manuals

VNSTATI(1)NAME
vnstati − image output support for vnStat

SYNOPSIS
vnstati [−5bcdDehiLmosStvy?] [−−95th mode] [−5g [limit] [height]] [−−altdate] [−−begin date][−−cache time] [−−config file] [−−days [limit]] [−−dbdir directory] [−−debug] [−−end date] [−−fivegraph [limit] [height]] [−−fiveminutes [limit]] [−−headertext text] [−−help] [−hg [mode]] [−−hours[limit]] [−−hoursgraph [mode]] [−hs [graph]] [−−hsummary [graph]] [−i interface] [−−iface interface][−ic [mode]] [−−invert−colors [mode]] [−−large] [−−limit limit] [−−locale locale] [−−months [limit]][−ne] [−nh] [−nl] [−−noedge] [−−noheader] [−−nolegend] [−−output file] [−ru [mode]] [−−rateunit[mode]] [−−scale percent] [−−small] [−−style number] [−−summary] [−−top [limit]] [−−transparent[enabled]] [−−version] [−vs [graph]] [−−vsummary [graph]] [−−months [limit]] [interface]

DESCRIPTION
The purpose of vnstati is to provide image output support for statistics collected using vnstat(1). The
available image file formats depend on what is supported by the used GD library. All basic outputs of vnStat are supported excluding live traffic features. The image can be outputted either to a file or to standard
output, with the later being limited to png image format.

OPTIONS--95th mode
Show 95th percentile output graph for the ongoing month. This output uses the 5 minute resolution
data of the ongoing month to calculate the 95th percentile traffic rate for received, transmitted ortotal as selected using the mandatory mode parameter. The 95th percentile will be shown as a horizontal line in the graph with the exact 95th percentile traffic rate visible in the legend section ofthe image. In addition, a one hour resolution traffic rate bar graph averaged from the 5 minute resolution data of the selected mode is presented. This output requires the 5MinuteHours configuration option to have a value of at least 744 for storing all the necessary data, otherwise 100% coverage isn’t possible. Available modes: 0 = received, 1 = transmitted, 2 = total.
--altdate
Use alternative date and time text location. The date and time text will be moved from the upper
right header section to the lower left corner. This option will have no effect if -nh, --noheader has
been selected.
-b, --begin date
Begin the list output with a specific date / time defined by date instead of the begin being selectedbased on the number of entries to be shown. If date isn’t available in the database then the closest
later date will be used. date supports the following formats: YYYY-MM-DD HH:MM, YYYYMM-DD and "today". This option can only be used with list outputs.
-c, --cache time
Update output file only if at least time minutes have passed since the previous file update. This option is ignored if stdout is used as output.
--config file
Use file as configuration file instead of using automatic configuration file search functionality. If--config is used multiple times, the configuration settings from files later on the command line will
override configuration settings loaded from earlier files if the settings defined in the files overlap.

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VNSTATI(1)-d, --days [limit]
Output traffic statistics on a daily basis for the last days. The length of the list will be limited to 30
entries unless configured otherwise or unless the optional limit parameter is used. All entries
stored in the database will be shown if limit is set to 0.
--dbdir directory
Use directory as database directory instead of using the directory specified in the configuration fileor the hardcoded default if no configuration file is available.
-D, --debug
Show additional debug output.
-e, --end dateEnd the list output with a specific date / time defined by date instead of the latest date / time in thedatabase. If date isn’t available in the database then the closest earlier date will be used. date supports the following formats: YYYY-MM-DD HH:MM and YYYY-MM-DD. This option can only
be used with list outputs. The top list also requires --begin to be used at the same time with thisoption.
-5g, --fivegraph [limit] [height]
Output traffic statistics with a 5 minute resolution for the last 48 hours using a bar graph. Thewidth of the graph can be modified using the optional limit parameter which represents the numberof 5 minute entries with 12 entries for each hour. The smallest supported value is 288 (last 24hours). Additionally, the height of the graph can be modified using the optional height parameter.
The smallest supported height is 150 pixels.
-5, --fiveminutes [limit]
Output traffic statistics with a 5 minute resolution for the last hours. The length of the list will belimited to 24 entries unless configured otherwise or unless the optional limit parameter is used. Allentries stored in the database will be shown if limit is set to 0.
--headertext text
Show text in image header section instead of automatically generated interface identification. text
is limited to 64 characters and may not get completely shown if longer than the width of the image. Use with --altdate if maximal space is needed. This option will have no effect if -nh, --noheader has been selected.
-h, --hours [limit]
Output traffic statistics on a hourly basis. The length of the list will be limited to 24 entries unlessconfigured otherwise or unless the optional limit parameter is used. All entries store in the database will be shown if the limit is set to 0.
-hg, --hoursgraph [mode]
Output traffic statistics on a hourly basis for the last 24 hours using a bar graph. The optionalmode parameter can be used to override the configuration file setting. Available modes: 0 = 24hour sliding window, 1 = graph begins from midnight.
-hs, --hsummary [graph]
Output traffic summary with the graph selected using the SummaryGraph setting in the configuration file next to it using a horizontal layout. The optional graph parameter can be used to override the configuration file setting. Available graphs: 0 = hours, 1 = 5 minutes.

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VNSTATI(1)-i, --iface interface
Use interface instead of default or configured interface. It is also possible to merge the informationof two or more interfaces using the interface1+interface2+... syntax. All provided interfaces must
be unique and must exist in the database when the merge syntax is used. Optionally, depending on
the InterfaceMatchMethod configuration setting, interface can be replaced with alias previously
set using vnstat --setalias. Merge syntax isn’t supported when alias is used. The -i, --iface option
is optional and interface can be used as parameter on the command line for selecting the used interface even without the option being explicitly used.
-ic, --invert-colors [mode]
Invert image colors. Results in black becoming white, dark colors becoming light, light colors becoming dark and white becoming black. The optional mode parameter can be used to change thecolor inversion behaviour. Available modes: 0 = no color inversion, 1 = invert all colors except
those used for rx and tx, 2 = invert all colors. When mode isn’t specific, mode 1 will be used.
-L, --large
Use large fonts in output.
--limit limit
Set the maximum number of shown entries in list outputs to limit. Usage of --limit overrides thedefault list entry limit values and the optional limit parameter given directly for a list query. All
entries stored in the database will be shown if limit is set to 0.
--locale locale
Use locale instead of using the locale setting specified in the configuration file or the system default if no configuration file is available.
-m, --months [limit]
Output traffic statistics on a monthly basis for the last months. The length of the list will be limited
to 12 entries unless configured otherwise or unless the optional limit parameter is used. All entries
stored in the database will be shown if limit is set to 0.
-ne, --noedge
Remove darker edges from around the image.
-nh, --noheader
Remove header containing title and update time. Time of the previous update will still be visible in
the lower right corner using a less visible color.
-nl, --nolegend
Remove legend containing rx and tx color mapping information from the image.
-o, --output file
Write image to file and exit. The used image format is selected by the given file extension of file.
For example, "image.png" results in the file getting written using the png image format due to the".png" extension having been used. Usage of png image format usually results in the smallest filesize without loss of detail or introduction of compression artifacts. Alternatively, output can be directed to stdout by giving "-" as file in which case png image format is used.

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VNSTATI(1)-ru, --rateunit [mode]
Swap the configured rate unit. If rate has been configured to be shown in bytes then rate will beshown in bits if this option is present. In the same way, if rate has been configured to be shown inbits then rate will be shown in bytes when this option is present. Alternatively, mode with either 0
or 1 can be used as parameter for this option in order to select between bytes (0) and bits (1) regardless of the configuration file setting.
--scale percent
Scale output to given percent resulting in the image being either smaller or larger than the default
size.
-S, --small
Use small fonts in output.
--style number
Modify the content and style of outputs. Setting number to 3 will show average traffic rate in all
outputs where it is supported. Other values will show bar graphics instead.
-s, --summary
Output traffic statistics summary.
-t, --top [limit]
Output all time top traffic days. The length of the list will be limited to 10 entries unless configured otherwise or unless the optional limit parameter is used. All entries stored in the database will
be shown if limit is set to 0. When used with --begin and optionally with --end, the list will begenerated using the daily data instead of separate top entries. The availability of daily data defines
the boundaries the date specific query can access.
--transparent [enabled]
Toggle background color transparency depending of the TransparentBg setting in the configuration file. Alternatively, 0 or 1 can be given as parameter enabled for this option in order to either
disable (0) or enable (1) transparency regardless of the configuration file setting.
-v, --version
Show current version.
-vs, --vsummary [graph]
Output traffic summary with the graph selected using the SummaryGraph setting in the configuration file below it using a vertical layout. The optional graph parameter can be used to override
the configuration file setting. Available graphs: 0 = hours, 1 = 5 minutes.
-y, --years [limit]
Output traffic statistics on a yearly basis for the last years. The list will show all entries by default
unless configured otherwise or unless the optional limit parameter is used. All entries stored in thedatabase will also be shown if limit is set to 0.
-?, --help
Show a command option summary.

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VNSTATI(1)FILES/var/lib/vnstat/
Default database directory.
/etc/vnstat.conf
Config file that will be used unless $HOME/.vnstatrc exists. See vnstat.conf(5) for more information.

EXAMPLES
vnstati -s -i eth0 -o /tmp/vnstat.png
Output traffic summary for interface eth0 to file /tmp/vnstat.png.
vnstati -vs -i eth0+eth1+eth2 -o /tmp/vnstat.png
Output traffic summary with hourly data under the normal summary for a merge of interfaces eth0,
eth1 and eth2 to file /tmp/vnstat.png.
vnstati -h -c 15 -o /tmp/vnstat_h.png
Output hourly traffic statistics for default interface to file /tmp/vnstat_h.png if the file has not been
updated within the last 15 minutes.
vnstati -d -ne -nh -o Output daily traffic statistics without displaying the header section and edges for default interface
to standard output (stdout).
vnstati -m --config /home/me/vnstat.cfg -i -o Output monthly traffic statistics for default interface specified in configuration file /home/me/vnstat.cfg to standard output (stdout).

RESTRICTIONS
Depending on the built-in fonts provided by the GD library, not all characters may end up shown correctly
when a UTF-8 locale is used.
Using long date output formats may cause misalignment in shown columns if the length of the date exceeds
the fixed size allocation.
Scaling an image when background transparency is enabled may not result in transparency being retained.

AUTHOR
Teemu Toivola <tst at iki dot fi>

SEE ALSO
vnstat(1), vnstatd(8), vnstat.conf(5), units(7)version 2.12

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