1.\" 2.\" Copyright (c) 2009 Advanced Computing Technologies LLC 3.\" Written by: George V. Neville-Neil <gnn@FreeBSD.org> 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" $FreeBSD: head/usr.bin/perror/perror.1 205011 2010-03-11 12:18:52Z joerg $ 28.\" 29.Dd June 25, 2014 30.Dt PERROR 1 31.Os 32.Sh NAME 33.Nm perror 34.Nd "print an error number as a string" 35.Sh SYNOPSIS 36.Nm 37.Ar number 38.Sh DESCRIPTION 39The 40.Nm 41program takes a raw errno value and prints it as a string. 42.Sh ENVIRONMENT 43The 44.Ev LANG , LC_ALL 45and 46.Ev LC_MESSAGES 47environment variables affect the execution of 48.Nm 49as described in 50.Xr environ 7 . 51.Sh SEE ALSO 52.Xr perror 3 53.Sh HISTORY 54The 55.Nm 56program first appeared in 57.Fx 8.0 . 58.Sh AUTHORS 59.An George V. Neville-Neil 60