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

NAME
     envstat -- utility to handle environmental sensors

SYNOPSIS
     envstat [-DfIlSTWx] [-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 drivers that were registered with the
           envsys(4) framework, one per line and some properties for the
           driver: refresh timeout value, for example.

     -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 devices
           manual page for meaningful values for interval.  If not specified,
           or specified as 0, envstat produces one round of values and exits.

     -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 drivers use by
           default.

     -s device:sensor,...
           Restrict the display to the named sensors.  The pair device and
           sensor description must be supplied as a comma separated list.
           Device as well as sensor descriptions are case sensitive.

     -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    Display the warning alarm minimum and maximum levels instead of the
           critical alarm levels.

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

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

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

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

           $ envstat -D

     To display the sensors of the driver aiboost0:

           $ envstat -d aiboost0

     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
     proplib(3), acpiacad(4), acpibat(4), acpitz(4), admtemp(4), aiboost(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.

NetBSD 5.0_STABLE              October 11, 2008              NetBSD 5.0_STABLE
