1.\" $NetBSD: printenv.1,v 1.7 2003/08/07 11:15:31 agc Exp $ 2.\" 3.\" Copyright (c) 1980, 1990, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Institute of Electrical and Electronics Engineers, Inc. 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 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 the 15.\" documentation and/or other materials provided with the distribution. 16.\" 3. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)printenv.1 8.1 (Berkeley) 6/6/93 33.\" $NetBSD: printenv.1,v 1.7 2003/08/07 11:15:31 agc Exp $ 34.\" 35.Dd June 6, 1993 36.Dt PRINTENV 1 37.Os 38.Sh NAME 39.Nm printenv 40.Nd print out the environment 41.Sh SYNOPSIS 42.Nm 43.Op Ar name 44.Sh DESCRIPTION 45.Nm 46prints out the names and values of the variables in the environment, 47with one name/value pair per line. 48If 49.Ar name 50is specified, only 51its value is printed. 52.Pp 53If a 54.Ar name 55is specified and it is not defined in the environment, 56.Nm 57returns exit status 1, else it returns status 0. 58.Sh SEE ALSO 59.Xr csh 1 , 60.Xr sh 1 , 61.Xr environ 7 62.Sh HISTORY 63The 64.Nm 65command appeared in 66.Bx 3.0 . 67