lappend(n) Tcl Built-In Commands lappend(n)______________________________________________________________________________NAMElappend - Append list elements onto a variable
SYNOPSISlappend varName ?value value value ...?
This command treats the variable given by varName as a list and appends
each of the value arguments to that list as a separate element, with
spaces between elements. If varName doesn't exist, it is created as a
list with elements given by the value arguments. Lappend is similar to
append except that the values are appended as list elements rather than
raw text. This command provides a relatively efficient way to build up
large lists. For example, ``lappend a $b'' is much more efficient than
``set a [concat $a [list $b]]'' when $a is long.
append, element, list, variable