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.so man.macros
.HS append tcl
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
append \- Append to variable
.SH SYNOPSIS
\fBappend \fIvarName value \fR?\fIvalue value ...\fR?
.BE

.SH DESCRIPTION
.PP
Append all of the \fIvalue\fR arguments to the current value
of variable \fIvarName\fR.  If \fIvarName\fR doesn't exist,
it is given a value equal to the concatenation of all the
\fIvalue\fR arguments.
This command provides an efficient way to build up long
variables incrementally.
For example, ``\fBappend a $b\fR'' is much more efficient than
``\fBset a $a$b\fR'' if \fB$a\fR is long.

.SH KEYWORDS
append, variable
