lappend(n)

lappendn

Append list elements onto a variable

Usage

lappend varName ?value value value ...?

Overview

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 does not 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, is much more efficient than when $a is long.

Examples

Using lappend to build up a list of numbers. % set var 1 1 % lappend var 2 1 2 % lappend var 3 4 5 1 2 3 4 5

Keywords

append, element, list, variable

Releases

163 releases since Mac OS X 10.0; the text changed 6 times.

  1. 10.0–10.1.5
  2. 10.2–10.2.2
  3. 10.2.3–10.2.8
  4. 10.3–10.3.9
  5. 10.4–10.4.2
  6. 10.4.3–10.5.8
  7. 10.6–26.5

From tcl 152 in macOS 26.5. Parsed by carta from the page's man source.