NAME
global - Access global variables
SYNOPSIS
global varname ?varname ...?
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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 execut
ing in the current procedure), any reference to any of the
varnames will refer to the global variable by the same
name.
Please note that this is done by creating local variables
that are linked to the global variables, and therefore
that these variables will be listed by info locals like
all other local variables.
SEE ALSO
namespace(n), upvar(n), variable(n)
KEYWORDS
global, namespace, procedure, variable
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