append(n) Tcl Built-In Commands append(n)______________________________________________________________________________NAMEappend - Append to variable
SYNOPSISappend varName ?value value value ...?
_________________________________________________________________DESCRIPTION
Append all of the value arguments to the current value of variable var‐
Name. If varName doesn't exist, it is given a value equal to the con‐
catenation of all the value arguments. This command provides an effi‐
cient way to build up long variables incrementally. For example,
``append a $b'' is much more efficient than ``set a $a$b'' if $a is
long.
KEYWORDS
append, variable
Tclappend(n)