### NAME

global - Access global variables

### SYNOPSIS

global varname ?varname ...?

### DESCRIPTION

This command is ignored unless a Tcl procedure is being interpreted. If so then it declares the given varname's to be global variables rather than local ones. Global variables are variables in the global namespace. For the duration of the current procedure (and only while executing in the current procedure), any reference to any of the varnames will refer to the global variable by the same name.

### SEE ALSO

namespace, upvar, variable

### KEYWORDS

global, namespace, procedure, variable

    Copyright © 1993 The Regents of the University of California.
    Copyright © 1994-1997 Sun Microsystems, Inc.
    Copyright © 1995-1997 Roger E. Critchlow Jr.