2.9BSD/usr/src/lib/libU77/man/flush.3f

.TH FLUSH 3F
.UC
.SH NAME
flush \- flush output to a file
.SH SYNOPSIS
.B subroutine flush (lunit)
.SH DESCRIPTION
.I Flush
causes the contents of the buffer for logical unit
.I lunit
to be flushed to the associated file.
This is most useful for logical units 0 and 6 when they are both
associated with the control terminal.
.SH FILES
/usr/lib/libI77.a
.SH "SEE ALSO"
fclose(3S)