NetBSD/usr.sbin/envstat/envstat.8

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2002-01-19 06:11:44 +03:00
.\" $NetBSD: envstat.8,v 1.3 2002/01/19 03:11:44 wiz Exp $
.\"
.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Bill Squier.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" This product includes software developed by the NetBSD
.\" Foundation, Inc. and its contributors.
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.Dd March 8, 2000
.Dt ENVSTAT 8
.Os
.Sh NAME
.Nm envstat
.Nd display environmental sensor readings
.Sh SYNOPSIS
.Nm
.Op Fl fl
.Op Fl i Ar interval
.Op Fl n Ar headrep
.Op Fl s Ar sensor1,sensor2,...
.Op Fl w Ar width
.Op Ar device
.Sh DESCRIPTION
.Nm
displays sensor readings from any device which supports the
.Xr envsys 4
API. Readings are displayed in columns, one column per sensor. Column
widths as well as displayed sensors are fully customizable. The column
headers display the name (stored in the device driver) as well as
the units of each sensor.
.Pp
The options are as follows:
.Bl -tag -width flag
.It Fl f
Display any temperature values in degrees Fahrenheit. The default is to
display temperature values in degrees Celsius.
.It Fl l
List the names of all supported sensors, one per line. Use of this
flag causes
.Nm
to ignore all other option flags.
.It Fl i
Repeat the display every
.Ar interval
seconds. Note that some devices do not provide fresh values on demand.
See the individual device's manual page for meaningful values for
.Ar interval .
If not specified, or specified as 0,
.Nm
produces one line of values and exits.
.It Fl n
Display a new header every
.Ar headrep
lines. An argument of 0 disables header line printing completely.
The default is every 22 lines.
.It Fl s
Restrict the display to the named sensors. The sensor names must be
supplied as a comma separated list. Sensor names are case sensitive.
.It Fl w
Use
.Ar width
as the column width for the output. Each column is additionally separated
by a single space. The default is either the length of the longest sensor
name or spread evenly to fill 80 columns, whichever is greater.
.El
.Sh SEE ALSO
.Xr envsys 4 ,
.Xr lm 4
.Sh HISTORY
.Nm
appeared in
.Nx 1.5 .