appending running numbers on a variable Post: 302465399

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LEARN ABOUT OPENSOLARIS

lappend

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)

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appending spaces to a variable

Discussion started by: rallapalli

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Appending to a variable?

Discussion started by: paqman

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appending space to variable

Discussion started by: viv1

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Discussion started by: michaeltravisuk