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).

SEE ALSO

       append(3tcl), eval(3tcl), join(3tcl)

KEYWORDS

       concatenate, join, list