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OpenDarwin 7.2.1 - man page for flush (opendarwin section n)

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flush(n)			      Tcl Built-In Commands				 flush(n)


       flush - Flush buffered output for a channel

       flush channelId

       Flushes any output that has been buffered for channelId.

       ChannelId must be an identifier for an open channel such as a Tcl standard channel (stdout |
       or stderr), the return value from an invocation of open or socket,  or  the  result  of	a |
       channel	creation  command provided by a Tcl extension.	The channel must have been opened |
       for writing.

       If the channel is in blocking mode the command does not return until all the buffered out-
       put  has  been  flushed to the channel. If the channel is in nonblocking mode, the command
       may return before all buffered output has been flushed; the remainder will be  flushed  in
       the background as fast as the underlying file or device is able to absorb it.

       file(n), open(n), socket(n), Tcl_StandardChannels(3)

       blocking, buffer, channel, flush, nonblocking, output

Tcl					       7.5					 flush(n)
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