Sending file from PC to Arduino How can i send a (file) from PC to Arduino Yun at running time ?

There's a way to send some commands via Serial. 
But how would a whole file goes ? Assuming the file can take place at RAM without any problems.

Thanks
You can send a file, byte after byte, using Serial.
On the Arduino side, you parse serial communication and put bytes inside an array. At the end, you reconstruct the file.