diff --git a/C/Makefile b/C/Makefile
index e69de29..52e40dc 100644
--- a/C/Makefile
+++ b/C/Makefile
@@ -0,0 +1,7 @@
+COLLEEN = colleen
+
+COLLEEN: colleen.o
+	cc -o colleen colleen.o
+
+colleen.o: colleen.c
+	cc -c colleen.c
diff --git a/C/colleen b/C/colleen
new file mode 100755
index 0000000..ba00379
Binary files /dev/null and b/C/colleen differ
diff --git a/C/colleen.c b/C/colleen.c
new file mode 100644
index 0000000..9de23a8
--- /dev/null
+++ b/C/colleen.c
@@ -0,0 +1,13 @@
+#include <stdio.h>
+/*	Le commentaire en dehores du programme	*/
+
+void	the_fonction_needed(void){
+	printf("YO\n");
+	return;
+}
+
+int	main(void){
+/*	LA FONCTION PRINCIPALE	*/
+	the_fonction_needed();
+	return 0;
+}
diff --git a/REPLICA/Makefile b/REPLICA/Makefile
new file mode 100644
index 0000000..488ffbf
--- /dev/null
+++ b/REPLICA/Makefile
@@ -0,0 +1,7 @@
+REPLICA = replica
+
+REPLICA: replica.o
+	cc -o replica replica.o
+
+replica.o: replica.c
+	cc -c replica.c
diff --git a/REPLICA/replica b/REPLICA/replica
new file mode 100755
index 0000000..1e66733
Binary files /dev/null and b/REPLICA/replica differ
diff --git a/REPLICA/replica.c b/REPLICA/replica.c
new file mode 100644
index 0000000..47ede0c
--- /dev/null
+++ b/REPLICA/replica.c
@@ -0,0 +1,12 @@
+#include <fcntl.h>
+int main(int argc, char** argv){
+	if (argc != 2)
+		return 0;
+	int fd = open(argv[1], O_RDONLY); 
+	if (fd == -1)
+	{
+		printf("fail opening file\n");
+		return 1;
+	}
+	return 0;
+}