concat(1T) Tcl Built-In Commands concat(1T)______________________________________________________________________________NAMEconcat - Join lists together
SYNOPSISconcat ?arg arg ...?
_________________________________________________________________DESCRIPTION
This command joins each of its arguments together with spaces after
trimming leading and trailing white-space from each of them. If all
the arguments are lists, this has the same effect as concatenating them
into a single list. It permits any number of arguments; if no args are
supplied, the result is an empty string.
EXAMPLES
Although concat will concatenate lists (so the command:
concat a b {c d e} {f {g h}}
will return "a b c d e f {g h}" as its result), it will also concate‐
nate things that are not lists, and hence the command:
concat " a b {c " d " e} f"
will return "a b {c d e} f" as its result.
Note that the concatenation does not remove spaces from the middle of
its arguments, so the command:
concat "a b c" { d e f }
will return "a b c d e f" (i.e. with three spaces between the a,
the b and the c).
SEE ALSOappend(1T), eval(1T)KEYWORDS
concatenate, join, lists
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌────────────────────┬─────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼─────────────────┤
│Availability │ runtime/tcl-8 │
├────────────────────┼─────────────────┤
│Interface Stability │ Uncommitted │
└────────────────────┴─────────────────┘
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 8.3 concat(1T)