xterm buffers program output?

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October 24th, 2001, 09:43 AM

JeffCT

PHP & Ruby Developer

Join Date: Jan 2001

Posts: 1,437

Time spent in forums: 5 h 36 m 40 sec
Reputation Power: 9

xterm buffers program output?

Whenever I run a program through an xterm it seems to buffer all of the output (to stdout) until the program is finished. I thought this was just a PHP thing but I wrote similar scripts in C and Perl and they do the same.

Scripts:

PHP

PHP Code:


		
			
for($i=0;$i<10;$i++)

{

      echo "Hi...\n";

      flush();

      sleep(2);

}

Perl

Code:

for($i=0;$i<10;$i++)
{
     print "Hi...\n";
     sleep(2);
}

Code:

#include <stdio.h>

void main()
{
     int i;

     for(i=0;i<10;i++)
     {
          printf("Hi...\n");
          sleep(2);
     }
}

They all do the same thing... I get

Hi...Hi...Hi...Hi...Hi...Hi...Hi...Hi...Hi...Hi...

after 20 seconds.

Maybe I'm just stupid but I could swear I never had this problem when writing QBasic and C programs for DOS years ago...

I have also tried things like this:

./program.php | more
./program.php > output

But the output is still buffered until the end...

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