diff options
Diffstat (limited to 'doc/tclvars.n')
| -rw-r--r-- | doc/tclvars.n | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/tclvars.n b/doc/tclvars.n index 4503add..ea99b4c 100644 --- a/doc/tclvars.n +++ b/doc/tclvars.n @@ -5,7 +5,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: tclvars.n,v 1.11 2002/02/15 14:28:48 dkf Exp $ +'\" RCS: @(#) $Id: tclvars.n,v 1.12 2002/04/23 19:06:10 hobbs Exp $ '\" .so man.macros .TH tclvars n 8.0 Tcl "Tcl Built-In Commands" @@ -43,7 +43,10 @@ capitalization are converted automatically to upper case. For instance, the PATH variable could be exported by the operating system as ``path'', ``Path'', ``PaTh'', etc., causing otherwise simple Tcl code to have to support many special cases. All other environment variables inherited by -Tcl are left unmodified. +Tcl are left unmodified. Setting an env array variable to blank is the +same as unsetting it as this is the behavior of the underlying Windows OS. +It should be noted that relying on an existing and empty environment variable +won't work on windows and is discoraged for cross-platform usage. .VE .RE .RS |