1.\" 2.\" Copyright (c) 2010 The DragonFly Project. All rights reserved. 3.\" 4.\" This code is derived from software contributed to The DragonFly Project 5.\" by Nolan Lum <nol888@gmail.com> 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in 15.\" the documentation and/or other materials provided with the 16.\" distribution. 17.\" 3. Neither the name of The DragonFly Project nor the names of its 18.\" contributors may be used to endorse or promote products derived 19.\" from this software without specific, prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.Dd September 29, 2016 35.Dt DEVATTR 8 36.Os 37.Sh NAME 38.Nm devattr 39.Nd tool for displaying devices and their associated properties 40.Sh SYNOPSIS 41.Nm 42.Op Fl AhM 43.Op Fl p Ar property 44.Op Fl d Ar device 45.Op Fl m Ar key:value 46.Op Fl r Ar key:value 47.Sh DESCRIPTION 48The 49.Nm 50tool is for displaying a list of devices and some 51associated properties such as their name. 52This tool exposes the same functionality provided by the 53.Xr devattr 3 54library, namely the filtering capabilities offered. 55.Pp 56The options are as follows: 57.Bl -tag -width indent 58.It Fl A 59Excludes aliases from the listing. 60.\" 61.It Fl h 62Displays a help message. 63.\" 64.It Fl M 65Continue monitoring after initial scan. 66Program continues monitoring for changes and 67does not exit until killed. 68.It Fl p 69Only display the specified 70.Ar property . 71This can be can be specified multiple times and combined 72with all other options. 73.\" 74.It Fl d 75Only display devices with name 76.Ar device . 77When used with 78.Fl p , 79only the specified properties of 80.Ar device 81are listed. 82Can be specified multiple times. 83Allows wildcards. 84.\" 85.It Fl m 86Only display devices whose property 87.Ar key 88matches with wildcards value 89.Ar value 90unless the key\-value pair starts with ~, in which case 91the match is inverted. 92Stacks with 93.Fl p , 94.Fl d , 95.Fl m . 96Can be specified multiple times. 97.\" 98.It Fl r 99Behaves similarly to 100.Fl m , 101but matches with regex. 102.El 103.Sh EXAMPLES 104List all devices named 'pts/0': 105.Bd -ragged -offset indent 106.Nm Fl d 107pts/0 108.Ed 109.Pp 110List all devices whose major number is 64: 111.Bd -ragged -offset indent 112.Nm Fl m 113major:64 114.Ed 115.Pp 116List all devices whose name is 'pts/0' and major number is not 64: 117.Bd -ragged -offset indent 118.Nm Fl d 119pts/0 120.Fl m 121~major:64 122.Ed 123.Sh SEE ALSO 124.Xr devattr 3 , 125.Xr udevd 8 126.Sh HISTORY 127The 128.Nm 129command appeared in 130.Dx 2.9 . 131.Sh AUTHORS 132.An Nolan Lum 133