flush tcl

Overview

Flush buffered output for a file

Syntax

flush fileId

Description

Flushes any output that has been buffered for fileId. FileId must have been the return value from a previous call to open, or it may be stdout or stderr to access one of the standard I/O streams; it must refer to a file that was opened for writing. The command returns an empty string.

Keywords

buffer, file, flush, output