diff --git a/SCR1.2/TP11/copy.c b/SCR1.2/TP11/copy.c
new file mode 100755
index 0000000..12ab339
--- /dev/null
+++ b/SCR1.2/TP11/copy.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define SZBUF 256
+
+int main(int argc, char const *argv[]){
+	char buf[SZBUF];
+	int fs,fd,n,m;
+	if (argc<3){
+		fprintf(stderr,"Usage : %s <SRC_FILE><bSR_FILE> \r",argv[0]);
+		exit (1);
+	} fs=open (argv[1], O_RDONLY);
+	if (fs==-1){
+		perror("Opening source file fails");
+		exit(2);
+	} fd=open (argv[2], O_WRONLY|O_TRUNC|O_CREAT,0b00);
+	if (fd==-1){
+		perror("Opening destination file fails");
+		exit(3);
+	} while (n=read(fs,buf,SZBUF)){
+		m=write(fd,buf,n);
+		if (m==-1){
+			perror("Writing in file fails");
+			exit(4);
+		}
+	} close(fs);
+	close(fd);
+	exit(0);
+}
\ No newline at end of file
diff --git a/SCR1.2/TP11/resultat.txt b/SCR1.2/TP11/resultat.txt
new file mode 100644
index 0000000..6563d85
Binary files /dev/null and b/SCR1.2/TP11/resultat.txt differ
diff --git a/SCR1.2/TP11/store_nb_rep.c b/SCR1.2/TP11/store_nb_rep.c
new file mode 100644
index 0000000..03c4d9c
--- /dev/null
+++ b/SCR1.2/TP11/store_nb_rep.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+
+#define SZBUF 256
+
+int main(int argc, char const *argv[]){
+	char buf[SZBUF];
+	int fd,n,m,x;
+	if (argc<2){
+		fprintf(stderr,"Usage : %s <bSR_FILE> \r",argv[0]);
+		exit (1);
+	} fd=open (argv[1], O_WRONLY|O_TRUNC|O_CREAT,0b00);
+	if (fd==-1){
+		perror("Opening destination file fails");
+		exit(2);
+	} write (1,"Numb --> ",9);
+	memset(buf,0,SZBUF);
+	while (n=read(0,buf,SZBUF)){
+		x=(int)strtol(buf,NULL,0);
+		m=write(fd,&x,sizeof(int));
+		if (m==-1){
+			perror("Writing in file fails");
+			exit(3);
+		}memset(buf,0,SZBUF);
+		write (1,"Numb --> ",9);
+	} close(fd);
+	exit(0);
+}
\ No newline at end of file
diff --git a/SCR1.2/TP11/store_numb.c b/SCR1.2/TP11/store_numb.c
new file mode 100644
index 0000000..ae5a9f9
--- /dev/null
+++ b/SCR1.2/TP11/store_numb.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define SZBUF 256
+
+int main(int argc, char const *argv[]){
+	char buf[SZBUF];
+	int fd,n,m;
+	if (argc<2){
+		fprintf(stderr,"Usage : %s <bSR_FILE> \r",argv[0]);
+		exit (1);
+	} fd=open (argv[1], O_WRONLY|O_TRUNC|O_CREAT,0b00);
+	if (fd==-1){
+		perror("Opening destination file fails");
+		exit(2);
+	} write (1,"Numb --> ",9);
+	while (n=read(0,buf,SZBUF)){
+		m=write(fd,buf,n);
+		if (m==-1){
+			perror("Writing in file fails");
+			exit(3);
+		}write (1,"Numb --> ",9);
+	} close(fd);
+	exit(0);
+}
\ No newline at end of file
diff --git a/SCR1.2/TP12/DIR/37.187.104.44 b/SCR1.2/TP12/DIR/37.187.104.44
new file mode 100644
index 0000000..e69de29
diff --git a/SCR1.2/TP12/DIR/37.187.107.140 b/SCR1.2/TP12/DIR/37.187.107.140
new file mode 100644
index 0000000..e69de29
diff --git a/SCR1.2/TP12/DIR/37.187.109.209 b/SCR1.2/TP12/DIR/37.187.109.209
new file mode 100644
index 0000000..e69de29
diff --git a/SCR1.2/TP12/DIR/5.135.162.217 b/SCR1.2/TP12/DIR/5.135.162.217
new file mode 100644
index 0000000..e69de29
diff --git a/SCR1.2/TP12/DIR/5.196.160.139 b/SCR1.2/TP12/DIR/5.196.160.139
new file mode 100644
index 0000000..e69de29
diff --git a/SCR1.2/TP12/DIR/62.210.28.176 b/SCR1.2/TP12/DIR/62.210.28.176
new file mode 100644
index 0000000..e69de29
diff --git a/SCR1.2/TP12/DIR/91.224.149.41 b/SCR1.2/TP12/DIR/91.224.149.41
new file mode 100644
index 0000000..e69de29
diff --git a/SCR1.2/TP12/DIR/94.23.32.122 b/SCR1.2/TP12/DIR/94.23.32.122
new file mode 100644
index 0000000..e69de29