'\"
'\" Copyright (c) 1993 The Regents of the University of California.
'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\" 
'\" SCCS: @(#) concat.n 1.7 96/03/25 20:11:56
'\" 
.so man.macros
.TH concat n "" Tcl "Tcl Built-In Commands"
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
concat \- Join lists together
.SH SYNOPSIS
.VS
\fBconcat\fI \fR?\fIarg arg ...\fR?
.VE
.BE

.SH DESCRIPTION
.PP
This command treats each argument as a list and concatenates them
into a single list.
It also eliminates leading and trailing spaces in the \fIarg\fR's
and adds a single separator space between \fIarg\fR's.
It permits any number of arguments.  For example,
the command
.CS
\fBconcat a b {c d e} {f {g h}}\fR
.CE
will return
.CS
\fBa b c d e f {g h}\fR
.CE
as its result.
.PP
.VS
If no \fIarg\fRs are supplied, the result is an empty string.
.VE

.SH KEYWORDS
concatenate, join, lists