append - Append to variable
append varName ?value value value ...?
Append all of the value arguments to the current value
of variable varName. If varName doesn't exist,
it is given a value equal to the concatenation of all the
value arguments.
This command provides an efficient 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.
append, variable
Copyright © 1993 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 1995-1997 Roger E. Critchlow Jr.