concat - Join lists together
concat ?arg arg ...?
concat(1t) Tcl Built-In Commands concat(1t)
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NAME
concat - Join lists together
SYNOPSIS
concat ?arg arg ...?
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DESCRIPTION
This command joins each of its arguments together with spaces after
trimming leading and trailing white-space from each of them. If all of
the arguments are lists, this has the same effect as concatenating them
into a single list. Arguments that are empty (after trimming) are
ignored entirely. It permits any number of arguments; if no args are
supplied, the result is an empty string.
EXAMPLES
Although concat will concatenate lists, flattening them in the process
(so giving the following interactive session):
% concat a b {c d e} {f {g h}}
a b c d e f {g h}
it will also concatenate things that are not lists, as can be seen from
this session:
% concat " a b {c " d " e} f"
a b {c d e} f
Note also that the concatenation does not remove spaces from the middle
of values, as can be seen here:
% concat "a b c" { d e f }
a b c d e f
(i.e., there are three spaces between each of the a, the b and the c).
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | runtime/tcl-8 |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
append(n), eval(n), join(n)
KEYWORDS
concatenate, join, list
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from http://prdownloads.sourceforge.net/tcl/tcl-
core8.6.7-src.tar.gz.
Further information about this software can be found on the open source
community website at https://www.tcl.tk/.
Tcl 8.3 concat(1t)