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NetBSD 6.1.5 - man page for envstat (netbsd section 8)

ENVSTAT(8)			   BSD System Manager's Manual			       ENVSTAT(8)

NAME
     envstat -- utility to handle environmental sensors

SYNOPSIS
     envstat [-DfIklSTWx] [-c file] [-d device] [-i interval] [-s device:sensor,...] [-w width]

DESCRIPTION
     envstat is a utility that handles various aspects of the sensors registered with the
     envsys(4) framework.  It is capable of displaying sensor values as well as changing parame-
     ters and setting critical limits for the sensors.

     In display mode, column widths as well as displayed sensors are fully customizable.  Criti-
     cal limits or other properties can be set via the configuration file.  If critical limits
     were set previously, the display mode will show the critical limits in addition to the cur-
     rent values.

     The following options are available:

     -c    Accepts a file as argument to set properties for sensors in devices registered with
	   the framework.  See the envsys.conf(5) manual page for more information.

     -D    Display the names of the devices that are currently registered with the envsys(4)
	   framework, one per line, along with some properties for the device (for example, its
	   refresh timeout value).

     -d device
	   Display only the sensors for the given device.  This is useful when there are multiple
	   devices registered and you want to only see results from a specific device.

     -f    Display temperature values in degrees Fahrenheit.  The default is to display tempera-
	   ture values in degrees Celsius.

     -I    This flag skips the sensors with invalid state; these are normally shown using the
	   "N/A" string by default.

     -i interval
	   Repeat the display every interval seconds.  Note that some devices do not provide
	   fresh values on demand.  See the individual device's manual page for meaningful values
	   for interval.  If not specified, or specified as 0, envstat produces one round of val-
	   ues and exits.

     -k    Display temperature values in Kelvin.  The default is to display temperature values in
	   degrees Celsius.

     -l    List the names of all supported sensors, one per line.  Use of this flag causes
	   envstat to ignore all other option flags.

     -r    This flag is provided for compatibility reasons and there's no need to use it.  In the
	   previous implementation, it was used to enable the row mode; this mode is now the
	   default.

     -S    This flag is used to restore defaults to all devices registered with the framework.
	   This will remove all properties that were set in the configuration file to the setting
	   that the devices use by default.

     -s device:sensor,...
	   Restrict the display to the named devices and sensors.  The pair device and sensor
	   description must be supplied as a comma separated list.  Device as well as sensor
	   descriptions are case sensitive.  Note that the order of the arguments given does not
	   influence the order of output.

     -T    Create and display max, min and average statistics for a sensor.  Must be used with an
	   interval, otherwise statistics cannot be collected up.  Please note that to get real-
	   istic values a lower interval value should be used, but that will also increase over-
	   head.

     -w width
	   Use width as the column width for the output.  Each column is additionally separated
	   by a single space.  The default is the length of the longest sensor name.

     -W    This option has no effect.  It is retained for historical reasons.

     -x    Shows the raw XML property list used by the sysmon_envsys(9) framework that contains
	   details about all registered devices and sensors.

UNITS
     The display mode may show some values with abbreviated units; for example:
	   A	     Amperes
	   Ah	     Ampere-hours
	   degC      degrees Celsius
	   degF      degrees Fahrenheit
	   K	     Kelvin
	   Ohms      Ohms
	   RPM	     Revolutions per minute
	   V	     Volts DC
	   VAC	     Volts AC
	   W	     Watts
	   Wh	     Watt-hours

EXAMPLES
     To display the ``charge'' sensor of the device acpibat0 in one line every ten seconds:

	   $ envstat -s "acpibat0:charge" -i 10

     To list the devices that are currently registered with envsys(4):

	   $ envstat -D

     To display the sensors of the device aibs0:

	   $ envstat -d aibs0

     To set all properties specified in the configuration file:

	   $ envstat -c /etc/envsys.conf

     To remove all properties that were set previously in the configuration file:

	   $ envstat -S

     To display statistics for all sensors and ignoring sensors with invalid states every second:

	   $ envstat -ITi1

SEE ALSO
     units(1), proplib(3), acpiacad(4), acpibat(4), acpitz(4), admtemp(4), aibs(4), amdtemp(4),
     aps(4), arcmsr(4), battery_pmu(4), cac(4), coretemp(4), dbcool(4), envctrl(4), envsys(4),
     finsio(4), ipmi(4), itesio(4), lm(4), lmtemp(4), mfi(4), nsclpcsio(4), owtemp(4),
     pic16lc(4), smsc(4), tctrl(4), thinkpad(4), tm121temp(4), ug(4), viaenv(4), envsys.conf(5)

HISTORY
     envstat appeared in NetBSD 1.5.  It was completely rewritten from scratch for NetBSD 5.0.

AUTHORS
     The envstat utility that appeared in NetBSD 5.0 was written by Juan Romero Pardines.  The
     previous version was written by Bill Squier.

BUGS
     When displaying statistics using the -T option, the average value is an average of the mini-
     mum, maximum, and current sensor values.  It is not an average of all current values dis-
     played during the session.

BSD					   June 7, 2011 				      BSD


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