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diff --git a/libraries/SD/examples/listfiles/listfiles.pde b/libraries/SD/examples/listfiles/listfiles.pde
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+++ b/libraries/SD/examples/listfiles/listfiles.pde
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+/*
+  SD card basic file example
+ 
+ This example shows how to create and destroy an SD card file 	
+ The circuit:
+ * SD card attached to SPI bus as follows:
+ ** MOSI - pin 11
+ ** MISO - pin 12
+ ** CLK - pin 13
+ ** CS - pin 4
+ 
+ created   Nov 2010
+ by David A. Mellis
+ updated 2 Dec 2010
+ by Tom Igoe
+ 
+ This example code is in the public domain.
+ 	 
+ */
+#include <SD.h>
+
+File root;
+
+void setup()
+{
+  Serial.begin(9600);
+  Serial.print("Initializing SD card...");
+  // On the Ethernet Shield, CS is pin 4. It's set as an output by default.
+  // Note that even if it's not used as the CS pin, the hardware SS pin 
+  // (10 on most Arduino boards, 53 on the Mega) must be left as an output 
+  // or the SD library functions will not work. 
+  pinMode(10, OUTPUT);
+
+  if (!SD.begin(10)) {
+    Serial.println("initialization failed!");
+    return;
+  }
+  Serial.println("initialization done.");
+
+  root = SD.open("/");
+  
+  printDirectory(root, 0);
+  
+  Serial.println("done!");
+}
+
+void loop()
+{
+  // nothing happens after setup finishes.
+}
+
+void printDirectory(File dir, int numTabs) {
+   while(true) {
+     
+     File entry =  dir.openNextFile();
+     if (! entry) {
+       // no more files
+       //Serial.println("**nomorefiles**");
+       break;
+     }
+     for (uint8_t i=0; i<numTabs; i++) {
+       Serial.print('\t');
+     }
+     Serial.print(entry.name());
+     if (entry.isDirectory()) {
+       Serial.println("/");
+       printDirectory(entry, numTabs+1);
+     } else {
+       // files have sizes, directories do not
+       Serial.print("\t\t");
+       Serial.println(entry.size(), DEC);
+     }
+   }
+}
+
+
+