diff --git a/Controle/Exercice 1/A b/Controle/Exercice 1/A
new file mode 100755
index 0000000..aa43db1
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diff --git a/Controle/Exercice 1/A.c b/Controle/Exercice 1/A.c
new file mode 100644
index 0000000..e1cc8a5
--- /dev/null
+++ b/Controle/Exercice 1/A.c	
@@ -0,0 +1,17 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char const *argv[]) {
+	char* arg[3] = {"B1", "1", NULL};
+	if (!fork()) {
+		execvp("B1", arg);
+	} else {
+		if (!fork()) {
+			arg[1] = "2";
+			execvp("B1", arg);
+		}
+	}
+	sleep(5);
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/Controle/Exercice 1/A.o b/Controle/Exercice 1/A.o
new file mode 100644
index 0000000..4553001
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diff --git a/Controle/Exercice 1/B1 b/Controle/Exercice 1/B1
new file mode 100755
index 0000000..6621b44
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diff --git a/Controle/Exercice 1/B1.c b/Controle/Exercice 1/B1.c
new file mode 100644
index 0000000..60cb393
--- /dev/null
+++ b/Controle/Exercice 1/B1.c	
@@ -0,0 +1,17 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char const *argv[]) {
+	char* arg[2] = {NULL, NULL};
+	if (!fork()) {
+		if (argv[1][0] == '1') {
+			arg[0] = "C1";
+		} else {
+			arg[0] = "C2";
+		}
+		execvp(arg[0], arg);
+	}
+	sleep(5);
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/Controle/Exercice 1/B1.o b/Controle/Exercice 1/B1.o
new file mode 100644
index 0000000..5ba5123
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diff --git a/Controle/Exercice 1/C1 b/Controle/Exercice 1/C1
new file mode 100755
index 0000000..1210dd1
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diff --git a/Controle/Exercice 1/C1.c b/Controle/Exercice 1/C1.c
new file mode 100644
index 0000000..4fa6daa
--- /dev/null
+++ b/Controle/Exercice 1/C1.c	
@@ -0,0 +1,8 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char const *argv[]) {
+	sleep(5);
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/Controle/Exercice 1/C1.o b/Controle/Exercice 1/C1.o
new file mode 100644
index 0000000..a0034d0
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diff --git a/Controle/Exercice 1/C2 b/Controle/Exercice 1/C2
new file mode 100755
index 0000000..fd2632d
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diff --git a/Controle/Exercice 1/C2.c b/Controle/Exercice 1/C2.c
new file mode 100644
index 0000000..4fa6daa
--- /dev/null
+++ b/Controle/Exercice 1/C2.c	
@@ -0,0 +1,8 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char const *argv[]) {
+	sleep(5);
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/Controle/Exercice 1/C2.o b/Controle/Exercice 1/C2.o
new file mode 100644
index 0000000..fcb1a38
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diff --git a/Controle/Exercice 1/Makefile b/Controle/Exercice 1/Makefile
new file mode 100644
index 0000000..c3601b0
--- /dev/null
+++ b/Controle/Exercice 1/Makefile	
@@ -0,0 +1,18 @@
+CC=gcc
+
+
+A: A.o B1
+	$(CC) -o A A.o
+
+B1: B1.o C1 C2
+	$(CC) -o B1 B1.o
+
+C1: C1.o
+	$(CC) -o C1 C1.o
+
+C2: C2.o
+	$(CC) -o C2 C2.o
+
+
+run:
+	A
\ No newline at end of file
diff --git a/Controle/Exercice 1/ok.txt b/Controle/Exercice 1/ok.txt
new file mode 100644
index 0000000..f3a9a4b
--- /dev/null
+++ b/Controle/Exercice 1/ok.txt	
@@ -0,0 +1 @@
+watch -n 1 ps -o cmd -C A,B1,C1,C2 --forest   dans un autre terminal
\ No newline at end of file
diff --git a/ExerciceSignaux.c b/ExerciceSignaux.c
new file mode 100644
index 0000000..252b00f
--- /dev/null
+++ b/ExerciceSignaux.c
@@ -0,0 +1,29 @@
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+    pid_t pid;
+    int status;
+
+    pid = fork();
+
+
+    if (pid != 0) {
+        printf("le pid du fils est %d\n", pid);
+        waitpid(pid, &status, WUNTRACED);
+
+        if (WIFSIGNALED(status)) {
+            printf("tué par le signal %d\n", WTERMSIG(status));
+        } else if (WIFSTOPPED(status)) {
+            printf("arrêté par le signal %d\n", WSTOPSIG(status));
+        } 
+    } else {
+        while(1){}
+    }
+
+exit(EXIT_SUCCESS);
+
+}
\ No newline at end of file
diff --git a/TP3/Ex1.c b/TP3/Ex1.c
new file mode 100644
index 0000000..7885bf0
--- /dev/null
+++ b/TP3/Ex1.c
@@ -0,0 +1,21 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+int main(int argc, char const *argv[]) {
+	pid_t pid;
+	pid = fork();
+	char *lel[3] = {"ls", "-l", NULL};
+	if (pid==0) {
+		printf("pid de mon papa : %d\n", getppid());
+		execvp("ls", lel);
+		
+	} else {
+		printf("pid de mon fiston : %d\n", pid);
+		wait(NULL);
+		
+	}
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/TP3/Ex2.c b/TP3/Ex2.c
new file mode 100644
index 0000000..fc43912
--- /dev/null
+++ b/TP3/Ex2.c
@@ -0,0 +1,30 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+int main(int argc, char *argv[]) {
+	pid_t pid;
+	int i;
+	if (argc < 2) {
+		perror("Pas assez d'arguments");
+		return EXIT_FAILURE;
+	}
+	if (argc > 9) {
+		perror("Trop d'arguments");
+		return EXIT_FAILURE;
+	}
+	pid = fork();
+	
+	if (pid==0) {
+		printf("pid de mon papa : %d\n", getppid());
+		execvp(argv[1], argv+1);
+		
+	} else {
+		printf("pid de mon fiston : %d\n", pid);
+		wait(NULL);
+		
+	}
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/TP3/Ex3.c b/TP3/Ex3.c
new file mode 100644
index 0000000..21fdf95
--- /dev/null
+++ b/TP3/Ex3.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/wait.h>
+int main(int argc, char *argv[]) {
+	int pid, fp, i, j;
+	char ch[4];
+	
+	fp = open("fichier", O_RDWR);
+	pid = fork();
+	
+	if (pid == 0) {
+		for (i = 0; i < 4; i++) {
+			read(fp, ch, 4);
+			printf("hello fils : %s\n", ch);
+			sleep(4);
+		}
+	} else {
+		for (j = 0; j < 3; j++) {
+			read(fp, ch, 4);
+			printf("Hello père : %s\n", ch);
+			sleep(5);
+		}
+		wait(NULL);
+		close(fp);
+	}
+	return 1;
+}
\ No newline at end of file
diff --git a/TP3/Ex4.c b/TP3/Ex4.c
new file mode 100644
index 0000000..8bf9de9
--- /dev/null
+++ b/TP3/Ex4.c
@@ -0,0 +1,13 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+int main(int argc, char const *argv[]) {
+	int i = 0;
+	char* envstr = getenv("RUN_0");
+	while(envstr != NULL) {
+		printf("%s", envstr);
+		i++;
+		envstr = getenv("RUN_"+ (i+30));
+	}
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/TP3/a.out b/TP3/a.out
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index 0000000..745714a
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diff --git a/TP3/fichier b/TP3/fichier
new file mode 100644
index 0000000..8198426
--- /dev/null
+++ b/TP3/fichier
@@ -0,0 +1 @@
+abcdefghijk127440)^liojh3uijb4567 k;ljilkj
\ No newline at end of file
diff --git a/TP3/fils1 b/TP3/fils1
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index 0000000..90cc459
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diff --git a/a.out b/a.out
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index 0000000..33ba0f2
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