1concat(n)                    Tcl Built-In Commands                   concat(n)
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NAME

8       concat - Join lists together
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SYNOPSIS

11       concat ?arg arg ...?
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DESCRIPTION

15       This  command  joins  each  of its arguments together with spaces after
16       trimming leading and trailing white-space from each of them.  If all of
17       the arguments are lists, this has the same effect as concatenating them
18       into a single list.  Arguments that are empty (after trimming) are  ig‐
19       nored  entirely.   It  permits  any number of arguments; if no args are
20       supplied, the result is an empty string.
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EXAMPLES

23       Although concat will concatenate lists, flattening them in the  process
24       (so giving the following interactive session):
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26              % concat a b {c d e} {f {g h}}
27              a b c d e f {g h}
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29       it will also concatenate things that are not lists, as can be seen from
30       this session:
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32              % concat " a b {c   " d "  e} f"
33              a b {c d e} f
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35       Note also that the concatenation does not remove spaces from the middle
36       of values, as can be seen here:
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38              % concat "a   b   c" { d e f }
39              a   b   c d e f
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41       (i.e., there are three spaces between each of the a, the b and the c).
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SEE ALSO

44       append(n), eval(n), join(n)
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KEYWORDS

47       concatenate, join, list
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51Tcl                                   8.3                            concat(n)