set(n) Tcl Built-In Commands set(n)_________________________________________________________________NAMEset - Read and write variables
SYNOPSISset varName ?value?
_________________________________________________________________DESCRIPTION
Returns the value of variable varName. If value is speci-
fied, then set the value of varName to value, creating a
new variable if one doesn't already exist, and return its
value. If varName contains an open parenthesis and ends
with a close parenthesis, then it refers to an array ele-
ment: the characters before the first open parenthesis
are the name of the array, and the characters between the
parentheses are the index within the array. Otherwise
varName refers to a scalar variable. If no procedure is
active, then varName refers to a global variable. If a
procedure is active, then varName refers to a parameter or
local variable of the procedure unless the global command
has been invoked to declare varName to be global.
KEYWORDS
read, write, variable
Tcl 1