Configuring a file

As mentioned previously, you may use the fconfigure command to set or get the configuration options for an open channel. The syntax is as follows:

fconfigure channel name value name value…

If invoked with no option names or values, the fconfigure command will return the configuration options for the channel specified. Optionally, a configuration name may be passed to get the configurations for the option specified. If name and value pairs are passed the file will be configured based on the name/value pairs supplied.

The syntax of acceptable options and their descriptions are as follows:

Option	Description
-blocking boolean	This determines if the I/O operations can result in indefinite blocking. Acceptable values must be provided in the standard Tcl Boolean format.
-buffering value	If set to full all output is buffered until a flush command is invoked. If set to line, then the system will automatically flush when a newline character is output. If set to none...