.\" $NetBSD: env.1,v 1.12 2007/06/08 18:20:42 wiz 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:
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.\" 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.
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\"
.\" from: @(#)printenv.1 6.7 (Berkeley) 7/28/91
.\" $NetBSD: env.1,v 1.12 2007/06/08 18:20:42 wiz Exp $
.\"
.Dd June 8, 2007
.Dt ENV 1
.Os
.Sh NAME
.Nm env
.Nd set and print environment
.Sh SYNOPSIS
.Nm
.Op Fl i
.Op Ar name=value ...
.Oo
.Ar utility
.Op argument ...
.Oc
.Sh DESCRIPTION
.Nm
executes
.Ar utility
after modifying the environment as
specified on the command line.
The option
.Ar name=value
specifies
an environmental variable,
.Ar name ,
with a value of
.Ar value .
The option
.Sq Fl i
causes
.Nm
to completely ignore the environment
it inherits.
.Pp
If no
.Ar utility
is specified,
.Nm
prints out the names and values
of the variables in the environment, with one
.Ar name=value
pair per line.
.Sh EXIT STATUS
.Nm
exits with one of the following values:
.Bl -tag -width Ds
.It 0
.Ar utility
was invoked and completed successfully.
In this case the exit code is returned by the utility itself, not
.Nm .
If no utility was specified, then
.Nm
completed successfully and returned the exit code itself.
.It 1
An invalid command line option was passed to
.Nm .
.It 1\-125
.Ar utility
was invoked, but failed in some way;
see its manual page for more information.
In this case the exit code is returned by the utility itself, not
.Nm .
.It 126
.Ar utility
was found, but could not be invoked.
.It 127
.Ar utility
could not be found.
.El
.Sh COMPATIBILITY
The historic
.Fl
option has been deprecated but is still supported in this implementation.
.Sh SEE ALSO
.Xr execvp 3 ,
.Xr environ 7
.Sh STANDARDS
The
.Nm
utility conforms to
.St -p1003.2-92 .
.Sh BUGS
.Nm
doesn't handle commands with equal
.Pq Dq =
signs in their
names, for obvious reasons.
