1993-07-15 00:24:33 +04:00
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.\" Copyright (c) 1980, 1990 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Institute of Electrical and Electronics Engineers, Inc.
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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1993-08-01 11:32:48 +04:00
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.\" from: @(#)printenv.1 6.7 (Berkeley) 7/28/91
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.\" $Id: env.1,v 1.2 1993/08/01 07:33:12 mycroft Exp $
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1993-07-15 00:24:33 +04:00
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.\"
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.Dd July 14, 1993
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.Dt ENV 1
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.Os
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.Sh NAME
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.Nm env
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.Nd set and print environment
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.Sh SYNOPSIS
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.Nm env
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.Op Fl i
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.Op Ar name=value ...
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.Oo
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.Ar command
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.Op argument ...
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.Oc
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.Sh DESCRIPTION
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.Nm env
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executes
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.Ar command
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after modifying the environment as
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specified on the command line. The option
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.Ar name=value
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specifies
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an environmental variable,
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.Ar name ,
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with a value of
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.Ar value .
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The option
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.Sq Fl i
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causes
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.Nm env
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to completely ignore the environment
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it inherits.
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.Pp
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If no
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.Ar command
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is specified,
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.Nm env
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prints out the names and values
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of the variables in the environment, with one name/value pair per line.
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.Sh DIAGNOSTICS
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If the
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.Ar command
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is invoked, the exit status of
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.Nm env
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shall be the exit status of
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.Ar command ;
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otherwise, the
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.Nm env
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command exits with one of the following values:
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.Bl -tag -width Ds
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.It 0
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The
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.Nm env
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command completed successfully
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.It 1-125
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An error occured.
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.It 126
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The
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.Ar command
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was found, but could not be invoked.
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.It 127
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The
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.Ar command
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could not be found.
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.El
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.Sh SEE ALSO
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.Xr execvp 3 ,
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.Xr environ 7
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.Sh STANDARDS
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The
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.Nm env
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command is expected to be
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.St -p1003.2
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compliant.
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.Sh BUGS
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.Nm env
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doesn't handle commands with equal (``='') signs in their
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names, for obvious reasons.
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