Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

OpenSolaris 2009.06 - man page for lappend (opensolaris section 1t)

lappend(1T)						       Tcl Built-In Commands						       lappend(1T)

__________________________________________________________________________________________________________________________________________________

NAME
lappend - Append list elements onto a variable
SYNOPSIS
lappend varName ?value value value ...? _________________________________________________________________
DESCRIPTION
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.
EXAMPLE
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
SEE ALSO
list(1T), lindex(1T), linsert(1T), llength(1T), lset(1T) lsort(1T), lrange(1T) |
KEYWORDS
append, element, list, variable
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWTcl | +--------------------+-----------------+ |Interface Stability | Uncommitted | +--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org. Tcl lappend(1T)