1.\" Copyright (c) 1980, 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the Institute of Electrical and Electronics Engineers, Inc. 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.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)printenv.1 8.1 (Berkeley) 6/6/93 31.\" $FreeBSD: head/usr.bin/printenv/printenv.1 314436 2017-02-28 23:42:47Z imp $ 32.\" 33.Dd August 17, 2019 34.Dt PRINTENV 1 35.Os 36.Sh NAME 37.Nm printenv 38.Nd print out the environment 39.Sh SYNOPSIS 40.Nm 41.Op Ar name 42.Sh DESCRIPTION 43The 44.Nm 45utility prints out the names and values of the variables in the environment, 46with one name/value pair per line. 47If 48.Ar name 49is specified, only 50its value is printed. 51.Pp 52Some shells may provide a builtin 53.Nm 54command which is similar or identical to this utility. 55Consult the 56.Xr builtin 1 57manual page. 58.Sh EXIT STATUS 59.Ex -std 60.Sh SEE ALSO 61.Xr csh 1 , 62.Xr env 1 , 63.Xr sh 1 , 64.Xr environ 7 65.Sh STANDARDS 66The 67.Nm 68utility is provided for compatibility with earlier 69.Bx 70and 71.Fx 72releases and is not specified by any standards. 73The functionality of 74.Nm 75can be duplicated with the 76.Xr echo 1 77and 78.Xr env 1 79utilities. 80.Sh HISTORY 81The 82.Nm 83command appeared in 84.Bx 3.0 . 85