1.\" Copyright (c) 2003 Matthew Dillon <dillon@backplane.com> 2.\" All rights reserved. 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 AUTHOR 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 AUTHOR 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.\" $DragonFly: src/bin/varsym/varsym.1,v 1.10 2008/02/22 05:19:25 swildner Exp $ 26.\" 27.Dd September 27, 2009 28.Dt VARSYM 1 29.Os 30.Sh NAME 31.Nm varsym 32.Nd get and set user and system-wide variables for variant symlinks 33.Sh SYNOPSIS 34.Nm 35.Op Fl adpqsux 36.Oo 37.Ar var Ns Op Ns Cm = Ns Ar data 38.Ar ... 39.Oc 40.Nm 41.Fl x 42.Oo 43.Ar var Ns Op Ns Cm = Ns Ar data 44.Ar ... 45.Oc 46.Ar command 47.Ar args 48.Sh DESCRIPTION 49The 50.Nm 51program manages user and system-wide variables. 52These variables are typically 53used by the system to resolve variant symlinks but may also be used generally. 54.Pp 55For each operand set, modify, retrieve, or delete the specified variable. 56By default variables specified without data are retrieved and variables 57specified with data are set. 58Variables may be set to empty. 59.Bl -tag -width Ar 60.It Fl a 61List all variables at the specified level. 62Note that per-process variables 63override per-user variables and per-user variables override system-wide 64variables. 65By default, per-user variables are listed. 66.It Fl d 67Delete mode. 68The specified variables are deleted. 69Any specified data is ignored. 70.It Fl p 71This option causes variables to be set on a per-process basis and restricts 72retrievals to process-specific variables. 73Note that since 74.Nm 75is run as its own process, using this option to set a variable will not 76affect your shell's namespace. 77Instead you might want to use the 78.Fl x 79option to set local varsyms and exec a command. 80.It Fl q 81Quiet mode. 82When retrieving a variable only its data is printed. 83.It Fl s 84This option causes variables to be set system-wide and restricts retrievals 85to system-specific variables. 86.It Fl u 87This option causes variables to be set on a per-user-id basis and restricts 88retrievals to user-specific variables. 89This is the default unless 90.Fl x 91is used. 92.It Fl x 93This option causes variables to be set only within the 94.Nm 95process and its children, and also allows you to specify a command and 96arguments to exec after the var=data specifications. 97.El 98.Sh EXIT STATUS 99The 100.Nm 101utility exits with one of the following values: 102.Bl -tag -width Ds 103.It 0 104No errors occurred. 105.It 1 106A requested variable could not be found 107.It 2 108A requested variable could not be set 109.El 110.Sh SEE ALSO 111.Xr ln 1 , 112.Xr varsym 2 , 113.Xr varsym.conf 5 114