.Op Fl \-hardware\-dtr\-dsr|\-R
.Op Fl \-software|\-X
.Op Fl \-delay|\-d Ar #
-.Op Fl \-timeout\-ns|\-f Ar #
-.Op Fl \-timeout\-s|\-F Ar #
.Op Fl \-min\-chars|\-m Ar #
.Op Fl \-canonical|\-c
.Op Fl \-echo|\-h
Toggle XON/XOFF software flow control (can be enabled with hardware flow control simultaneously).
.It Fl \-delay|\-d Ar #
Delay between sending multiple characters (when redirecting stdin or writing a file) to the line in nanoseconds.
-.It Fl \-timeout\-ns|\-f Ar #
-With stdin redirected,
-.Nm
-will exit upon reaching
-.Ar EOF ,
-this option sets a delay (in nanoseconds) after
-.Ar EOF
-encounter and before program exit.
-.It Fl \-timeout\-s|\-F Ar #
-.Ar EOF
-exit delay (in seconds).
.It Fl \-min\-chars|\-m Ar #
The minimum of characters to input before they get sent to the line.
.It Fl \-canonical|\-c