'\" '\" 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 \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