Re: [LIP] How does mplayer or wget display their output??

Vardhman Jain posted in linux-india-programmers:
> the command was given, so I believe they donot use ncurses. can some
> one tell me how to achieve a similar output(refreshing the same line
> on console on update).

Just use "\r" at the end of the line instead of the "\n", to get the
effect of a carriage-return only (not a line feed).

This code snippet will keep updating the same line:

for (i = 0; i < 100; i++) {
	printf ("%d\r", i);
	fflush(stdout);
	sleep (1);
}

Of course, line buffered streams (like stdout to tty) are guaranteed
to be cleared only on \n, so you need those fflush() calls.

Binand

-- 
Hanlon's Razor: Never attribute to malice that which can be adequately
explained by stupidity.
Bruce's Razor: Never attribute to stupidity that which can be adequately
explained by Microsoft funding.


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