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'\"
'\" Copyright (c) 1997-1998 Sun Microsystems, Inc.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\" RCS: @(#) $Id: Environment.3,v 1.6.10.1 2009/11/27 14:53:54 dkf Exp $
'\"
.so man.macros
.TH Tcl_PutEnv 3 "7.5" Tcl "Tcl Library Procedures"
.BS
.SH NAME
Tcl_PutEnv \- procedures to manipulate the environment
.SH SYNOPSIS
.nf
\fB#include <tcl.h>\fR
.sp
int
\fBTcl_PutEnv\fR(\fIassignment\fR)
.SH ARGUMENTS
.AS "const char" *assignment
.AP "const char" *assignment in
Info about environment variable in the format
.QW \fINAME\fB=\fIvalue\fR .
The \fIassignment\fR argument is in the system encoding.
.BE
.SH DESCRIPTION
.PP
\fBTcl_PutEnv\fR sets an environment variable. The information is
passed in a single string of the form
.QW \fINAME\fB=\fIvalue\fR .
This procedure is
intended to be a stand-in for the UNIX \fBputenv\fR system call. All
Tcl-based applications using \fBputenv\fR should redefine it to
\fBTcl_PutEnv\fR so that they will interface properly to the Tcl
runtime.
.SH "SEE ALSO"
tclvars(n)
.SH KEYWORDS
environment, variable
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