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puts sends a string to the standard output. If the string has more than one word, you must delimit them with double-quotes or braces:
puts "hello, world"
puts {hello, world}
The full syntax is:
<b>puts</b> ?<b>-nonewline</b>? ?channelId? string
The -nonewline switch prevents the normal newline character at the end of the output.
The channelId must be a identifier for an open channnel, such as the Tcl standard channels stdout and stderr, or the return value from [open] or [socket].
Output from puts is normally buffered. You can force the output to be displayed with [flush].
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