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devattr.8
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devattr.8
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.\"
.\" Copyright (c) 2010 The DragonFly Project. All rights reserved.
.\"
.\" This code is derived from software contributed to The DragonFly Project
.\" by Nolan Lum <nol888@gmail.com>
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\"
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in
.\" the documentation and/or other materials provided with the
.\" distribution.
.\" 3. Neither the name of The DragonFly Project nor the names of its
.\" contributors may be used to endorse or promote products derived
.\" from this software without specific, prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd December 6, 2010
.Dt DEVATTR 8
.Os
.Sh NAME
.Nm devattr
.Nd tool for displaying devices and their associated properties
.Sh SYNOPSIS
.Nm
.Op Fl Ah
.Op Fl p Ar property
.Op Fl d Ar device
.Op Fl m Ar key:value
.Op Fl r Ar key:value
.Sh DESCRIPTION
The
.Nm
tool is for displaying a list of devices and some
associated properties such as their name.
This tool exposes the same functionality provided by the
.Xr devattr 3
library, namely the filtering capabilities offered.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl A
Excludes aliases from the listing.
.\"
.It Fl h
Displays a help message.
.\"
.It Fl p
Only display the specified
.Ar property .
This can be can be specified multiple times and combined
with all other options.
.\"
.It Fl d
Only display devices with name
.Ar device .
When used with
.Fl p ,
only the specified properties of
.Ar device
are listed.
Can be specified multiple times.
Allows wildcards.
.\"
.It Fl m
Only display devices whose property
.Ar key
matches with wildcards value
.Ar value
unless the key\-value pair starts with ~, in which case
the match is inverted.
Stacks with
.Fl p ,
.Fl d ,
.Fl m .
Can be specified multiple times.
.\"
.It Fl r
Behaves similarly to
.Fl m ,
but matches with regex.
.El
.Sh EXAMPLES
List all devices named 'pts/0':
.Bd -ragged -offset indent
.Nm Fl d
pts/0
.Ed
.Pp
List all devices whose major number is 64:
.Bd -ragged -offset indent
.Nm Fl m
major:64
.Ed
.Pp
List all devices whose name is 'pts/0' and major number is not 64:
.Bd -ragged -offset indent
.Nm Fl d
pts/0
.Fl m
~major:64
.Ed
.Sh SEE ALSO
.Xr devattr 3 ,
.Xr udevd 8
.Sh AUTHORS
.An Nolan Lum