xref: /freebsd/usr.bin/printenv/printenv.1 (revision 9b50d9027575220cb6dd09b3e62f03f511e908b8)
19b50d902SRodney W. Grimes.\" Copyright (c) 1980, 1990, 1993
29b50d902SRodney W. Grimes.\"	The Regents of the University of California.  All rights reserved.
39b50d902SRodney W. Grimes.\"
49b50d902SRodney W. Grimes.\" This code is derived from software contributed to Berkeley by
59b50d902SRodney W. Grimes.\" the Institute of Electrical and Electronics Engineers, Inc.
69b50d902SRodney W. Grimes.\" Redistribution and use in source and binary forms, with or without
79b50d902SRodney W. Grimes.\" modification, are permitted provided that the following conditions
89b50d902SRodney W. Grimes.\" are met:
99b50d902SRodney W. Grimes.\" 1. Redistributions of source code must retain the above copyright
109b50d902SRodney W. Grimes.\"    notice, this list of conditions and the following disclaimer.
119b50d902SRodney W. Grimes.\" 2. Redistributions in binary form must reproduce the above copyright
129b50d902SRodney W. Grimes.\"    notice, this list of conditions and the following disclaimer in the
139b50d902SRodney W. Grimes.\"    documentation and/or other materials provided with the distribution.
149b50d902SRodney W. Grimes.\" 3. All advertising materials mentioning features or use of this software
159b50d902SRodney W. Grimes.\"    must display the following acknowledgement:
169b50d902SRodney W. Grimes.\"	This product includes software developed by the University of
179b50d902SRodney W. Grimes.\"	California, Berkeley and its contributors.
189b50d902SRodney W. Grimes.\" 4. Neither the name of the University nor the names of its contributors
199b50d902SRodney W. Grimes.\"    may be used to endorse or promote products derived from this software
209b50d902SRodney W. Grimes.\"    without specific prior written permission.
219b50d902SRodney W. Grimes.\"
229b50d902SRodney W. Grimes.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
239b50d902SRodney W. Grimes.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
249b50d902SRodney W. Grimes.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
259b50d902SRodney W. Grimes.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
269b50d902SRodney W. Grimes.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
279b50d902SRodney W. Grimes.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
289b50d902SRodney W. Grimes.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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309b50d902SRodney W. Grimes.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
319b50d902SRodney W. Grimes.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
329b50d902SRodney W. Grimes.\" SUCH DAMAGE.
339b50d902SRodney W. Grimes.\"
349b50d902SRodney W. Grimes.\"	@(#)printenv.1	8.1 (Berkeley) 6/6/93
359b50d902SRodney W. Grimes.\"
369b50d902SRodney W. Grimes.Dd June 6, 1993
379b50d902SRodney W. Grimes.Dt PRINTENV 1
389b50d902SRodney W. Grimes.Os BSD 3
399b50d902SRodney W. Grimes.Sh NAME
409b50d902SRodney W. Grimes.Nm printenv , env
419b50d902SRodney W. Grimes.Nd print out the environment, set and print environment
429b50d902SRodney W. Grimes.Sh SYNOPSIS
439b50d902SRodney W. Grimes.Nm printenv
449b50d902SRodney W. Grimes.Op Ar name
459b50d902SRodney W. Grimes.Nm env
469b50d902SRodney W. Grimes.Op Fl
479b50d902SRodney W. Grimes.Op Ar name=value ...
489b50d902SRodney W. Grimes.Op Ar command
499b50d902SRodney W. Grimes.Sh DESCRIPTION
509b50d902SRodney W. Grimes.Nm Printenv
519b50d902SRodney W. Grimesprints out the names and values of the variables in the environment,
529b50d902SRodney W. Grimeswith one name/value pair per line.  If
539b50d902SRodney W. Grimes.Ar name
549b50d902SRodney W. Grimesis specified, only
559b50d902SRodney W. Grimesits value is printed.
569b50d902SRodney W. Grimes.Pp
579b50d902SRodney W. GrimesIf a
589b50d902SRodney W. Grimes.Ar name
599b50d902SRodney W. Grimesis specified and it is not defined in the environment,
609b50d902SRodney W. Grimes.Nm printenv
619b50d902SRodney W. Grimesreturns exit status 1, else it returns status 0.
629b50d902SRodney W. Grimes.Pp
639b50d902SRodney W. Grimes.Nm Env
649b50d902SRodney W. Grimesexecutes
659b50d902SRodney W. Grimes.Ar command
669b50d902SRodney W. Grimesafter modifying the environment as
679b50d902SRodney W. Grimesspecified on the command line.  The option
689b50d902SRodney W. Grimes.Ar name=value
699b50d902SRodney W. Grimesspecifies
709b50d902SRodney W. Grimesan environmental variable,
719b50d902SRodney W. Grimes.Ar name  ,
729b50d902SRodney W. Grimeswith a value of
739b50d902SRodney W. Grimes.Ar value  .
749b50d902SRodney W. GrimesThe option
759b50d902SRodney W. Grimes.Sq Fl
769b50d902SRodney W. Grimescauses
779b50d902SRodney W. Grimes.Nm env
789b50d902SRodney W. Grimesto completely ignore the environment
799b50d902SRodney W. Grimesit inherits.
809b50d902SRodney W. Grimes.Pp
819b50d902SRodney W. GrimesIf no command is specified,
829b50d902SRodney W. Grimes.Nm env
839b50d902SRodney W. Grimesprints out the names and values
849b50d902SRodney W. Grimesof the variables in the environment, with one name/value pair per line.
859b50d902SRodney W. Grimes.Sh SEE ALSO
869b50d902SRodney W. Grimes.Xr csh 1 ,
879b50d902SRodney W. Grimes.Xr sh 1 ,
889b50d902SRodney W. Grimes.Xr execvp 3 ,
899b50d902SRodney W. Grimes.Xr environ 7
909b50d902SRodney W. Grimes.Sh HISTORY
919b50d902SRodney W. GrimesThe
929b50d902SRodney W. Grimes.Nm printenv
939b50d902SRodney W. Grimescommand appeared in
949b50d902SRodney W. Grimes.Bx 3.0 .
959b50d902SRodney W. Grimes.Sh BUGS
969b50d902SRodney W. Grimes.Nm Env
979b50d902SRodney W. Grimesdoesn't handle commands with equal (``='') signs in their
989b50d902SRodney W. Grimesnames, for obvious reasons.
99