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.\" $OpenBSD: env.1,v 1.13 2006/05/28 05:29:54 ray Exp $
.\" Copyright (c) 1980, 1990 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" from: @(#)printenv.1 6.7 (Berkeley) 7/28/91
.\"
.Dd August 27, 1993
.Dt ENV 1
.Os
.Sh NAME
.Nm env
.Nd set and print environment
.Sh SYNOPSIS
.Nm env
.Op Fl i
.Oo
.Ar name Ns = Ns Ar value ...
.Oc
.Oo
.Ar utility
.Op Ar argument ...
.Oc
.Sh DESCRIPTION
.Nm
executes
.Ar utility
after modifying the environment as
specified on the command line.
The option
.Ar name Ns = Ns Ar value
specifies
an environment variable,
.Ar name ,
with a value of
.Ar value .
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl i
Causes
.Nm
to completely ignore the environment it inherits.
.El
.Pp
If no
.Ar utility
is specified,
.Nm
prints out the names and values
of the variables in the environment, with one
.Ar name Ns = Ns Ar value
pair per line.
.Sh DIAGNOSTICS
If the
.Ar utility
is invoked, the exit status of
.Nm
shall be the exit status of
.Ar utility ;
otherwise, the
.Nm
utility exits with one of the following values:
.Bl -tag -width Ds
.It 0
The
.Nm
utility completed successfully.
.It 1-125
The exit code returned from the
.Ar utility .
.It 126
The utility specified by
.Ar utility
was found, but could not be invoked.
.It 127
The utility specified by
.Ar utility
could not be found.
.El
.Sh SEE ALSO
.Xr execvp 3 ,
.Xr environ 7
.Sh STANDARDS
The historic
.Fl
option has been deprecated but is still supported in this implementation.
.Pp
The
.Nm
utility conforms to
.St -p1003.2-92 .
.Sh BUGS
.Nm
doesn't handle commands with equal
.Pq Sq =
signs in their
names, for obvious reasons.
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