10-23-2009
when the program ran alone without redirection or pipe line, the output went to screen which was line buffered so you can see it before it died. All the other scenarios you had later involved buffering of larger amount of data. Due to the sudden death of the program the output was lost.
You can run the program under a tty program or modify the source code to make it line buffered or flush the output.
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LEARN ABOUT OPENSOLARIS
flush
flush(1T) Tcl Built-In Commands flush(1T)
__________________________________________________________________________________________________________________________________________________
NAME
flush - Flush buffered output for a channel
SYNOPSIS
flush channelId
_________________________________________________________________
DESCRIPTION
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 output has been flushed to the channel. If the chan-
nel is in nonblocking mode, the command may return before all buffered output has been flushed; the remainder will be flushed in the back-
ground as fast as the underlying file or device is able to absorb it.
EXAMPLE
Prompt for the user to type some information in on the console:
puts -nonewline "Please type your name: "
flush stdout
gets stdin name
puts "Hello there, $name!"
SEE ALSO
file(1T), open(1T), socket(1T), Tcl_StandardChannels(3TCL)
KEYWORDS
blocking, buffer, channel, flush, nonblocking, output
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 7.5 flush(1T)