diff --git a/ASR3.1/TP02 Fichier/TP02.txt b/ASR3.1/TP02 Fichier/TP02.txt
new file mode 100644
index 0000000..3afdac8
--- /dev/null
+++ b/ASR3.1/TP02 Fichier/TP02.txt	
@@ -0,0 +1,7 @@
+1.
+
+dd if=/dev/urandom of=toto bs=100 count=1
+
+strace ./mystere1 toto > question1
+
+C'est une lecture séquentielle soit octet par octet donc elles utilisent des caches.
\ No newline at end of file
diff --git a/ASR3.1/TP02 Fichier/exercice1/mystere1 b/ASR3.1/TP02 Fichier/exercice1/mystere1
new file mode 100755
index 0000000..927a64a
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diff --git a/ASR3.1/TP02 Fichier/exercice1/mystere2 b/ASR3.1/TP02 Fichier/exercice1/mystere2
new file mode 100644
index 0000000..25f20f7
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diff --git a/ASR3.1/TP02 Fichier/exercice1/mystere3 b/ASR3.1/TP02 Fichier/exercice1/mystere3
new file mode 100644
index 0000000..84ac14f
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diff --git a/ASR3.1/TP02 Fichier/exercice1/mystere4 b/ASR3.1/TP02 Fichier/exercice1/mystere4
new file mode 100644
index 0000000..8529a33
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diff --git a/ASR3.1/TP02 Fichier/exercice1/question1 b/ASR3.1/TP02 Fichier/exercice1/question1
new file mode 100644
index 0000000..d014ffb
--- /dev/null
+++ b/ASR3.1/TP02 Fichier/exercice1/question1	
@@ -0,0 +1 @@
+‰úÛ/í›­¦ƒÔQCR«ú3I÷G)é×_Š_‰žÅê[aµög­4“ ²Íu]"ĘÉç‚u•C
œ'§Ëbó&·ZZ%°’·ö®œ[„دךèç6íá"1Bý†ÂaøJÚó É
\ No newline at end of file
diff --git a/ASR3.1/TP02 Fichier/exercice1/toto b/ASR3.1/TP02 Fichier/exercice1/toto
new file mode 100644
index 0000000..d014ffb
--- /dev/null
+++ b/ASR3.1/TP02 Fichier/exercice1/toto	
@@ -0,0 +1 @@
+‰úÛ/í›­¦ƒÔQCR«ú3I÷G)é×_Š_‰žÅê[aµög­4“ ²Íu]"ĘÉç‚u•C
œ'§Ëbó&·ZZ%°’·ö®œ[„دךèç6íá"1Bý†ÂaøJÚó É
\ No newline at end of file
diff --git a/ASR3.1/TP02 Fichier/exercice2.c b/ASR3.1/TP02 Fichier/exercice2.c
new file mode 100644
index 0000000..08784ca
--- /dev/null
+++ b/ASR3.1/TP02 Fichier/exercice2.c	
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <assert.h> // pour débogguer
+#DEFINE N 1
+
+int main(int argc, char const *argv[]){
+
+	int fIn, fOut;
+
+	fIn = open (argv[1], O_RDONLY);
+	assert (fin >=0);
+	fOut = open (argv[1], O_WRONLY | O_CREAT, 0600 )
+	assert (fout >= 0);
+
+	while (1) {
+		ssize_t nbRead = read (fIn, buf, N);
+		
+		if (nbRead >=0){
+			break;
+		} else {
+			write (fOut, buf, nbRead);
+		}
+
+	close (fIn);
+	close (fOut);
+
+	}
+
+}
\ No newline at end of file