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. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)printenv.1 8.1 (Berkeley) 6/6/93 35.\" $FreeBSD$ 36.\" 37.Dd June 6, 1993 38.Dt PRINTENV 1 39.Os BSD 3 40.Sh NAME 41.Nm printenv , env 42.Nd print out the environment, set and print environment 43.Sh SYNOPSIS 44.Nm printenv 45.Op Ar name 46.Nm env 47.Op Fl 48.Op Fl i 49.Op Ar name=value ... 50.Op Ar command 51.Sh DESCRIPTION 52.Nm Printenv 53prints out the names and values of the variables in the environment, 54with one name/value pair per line. If 55.Ar name 56is specified, only 57its value is printed. 58.Pp 59If a 60.Ar name 61is specified and it is not defined in the environment, 62.Nm printenv 63returns exit status 1, else it returns status 0. 64.Pp 65.Nm Env 66executes 67.Ar command 68after modifying the environment as 69specified on the command line. The option 70.Ar name=value 71specifies 72an environment variable, 73.Ar name , 74with a value of 75.Ar value . 76.Pp 77The options are as follows: 78.Bl -tag -width indent 79.It Fl i 80Execute the 81.Ar command 82with only those environment values specified. 83The environment inherited 84by 85.Nm env 86is ignored completely. 87.It Fl 88Identical to the 89.Fl i 90option, available for backward compatibility. 91.El 92.Pp 93If no command is specified, 94.Nm env 95prints out the names and values 96of the variables in the environment, with one name/value pair per line. 97.Sh SEE ALSO 98.Xr csh 1 , 99.Xr sh 1 , 100.Xr execvp 3 , 101.Xr environ 7 102.Sh HISTORY 103The 104.Nm printenv 105command appeared in 106.Bx 3.0 . 107.Sh BUGS 108.Nm Env 109doesn't handle commands with equal (``='') signs in their 110names, for obvious reasons. 111