envstat(8) - NetBSD Manual Pages

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ENVSTAT(8)              NetBSD 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 regis-
     tered with the envsys(4) framework.  It is capable of displaying sensor
     values as well as changing parameters and setting critical limits for the
     sensors.

     In display mode, column widths as well as displayed sensors are fully
     customizable.  Critical 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 current 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 temperature 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 values 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 col-
           lected up.  Please note that to get realistic values a lower inter-
           val value should be used, but that will also increase overhead.

     -w width
           Use width as the column width for the output.  Each column is addi-
           tionally 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) frame-
           work that contains details about all registered devices and sen-
           sors.


UNITS

     The display mode may show some values with abbreviated units; for exam-
     ple:
           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
           %rH       relative Humidity


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), hythygtemp(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 minimum, maximum, and current sensor values.  It is not an
     average of all current values displayed during the session.

NetBSD 8.0                       May 18, 2014                       NetBSD 8.0