NAME
       append - Append to variable

SYNOPSIS
       append varName ?value value value ...?


DESCRIPTION
       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.


KEYWORDS
