1.\"- 2.\" Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org> 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd July 8, 2000 28.Dt KENV 1 29.Os 30.Sh NAME 31.Nm kenv 32.Nd dump or modify the kernel environment 33.Sh SYNOPSIS 34.Nm 35.Op Fl h 36.Nm 37.Ar variable Ns Op = Ns Ar value 38.Nm 39.Fl u 40.Ar variable 41.Sh DESCRIPTION 42The 43.Nm 44utility will dump the kernel environment if 45invoked without arguments. 46If the 47.Fl h 48option is specified, it will limit the report to kernel probe hints. 49If an optional 50.Ar variable 51name is specified, 52.Nm 53will only report that value. 54If the 55.Fl u 56option is specified, 57.Nm 58will delete the given environment variable. 59If the environment variable is followed by an optional 60.Ar value , 61.Nm 62will set the environment variable to this value. 63.Sh SEE ALSO 64.Xr kenv 2 , 65.Xr loader 8 66.Sh HISTORY 67The 68.Nm 69utility appeared in 70.Fx 4.1.1 . 71