2 getenv - get an environment variable
13 This function returns the value of the environment variable named by
14 the string env. If no such environment variable exists, nil is returned.
17 ; putenv("name", "value")
25 ; isnull(getenv("unknown"))
37 ## Copyright (C) 1999 Landon Curt Noll
39 ## Calc is open software; you can redistribute it and/or modify it under
40 ## the terms of the version 2.1 of the GNU Lesser General Public License
41 ## as published by the Free Software Foundation.
43 ## Calc is distributed in the hope that it will be useful, but WITHOUT
44 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
45 ## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
46 ## Public License for more details.
48 ## A copy of version 2.1 of the GNU Lesser General Public License is
49 ## distributed with calc under the filename COPYING-LGPL. You should have
50 ## received a copy with calc; if not, write to Free Software Foundation, Inc.
51 ## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
53 ## @(#) $Revision: 30.1 $
54 ## @(#) $Id: getenv,v 30.1 2007/03/16 11:10:42 chongo Exp $
55 ## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/getenv,v $
57 ## Under source code control: 1995/07/09 03:48:57
58 ## File existed as early as: 1995
60 ## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
61 ## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/