diff --git a/drivers/stdin/stdin.c b/drivers/stdin/stdin.c
index 6b848082..7904f62a 100644
--- a/drivers/stdin/stdin.c
+++ b/drivers/stdin/stdin.c
@@ -28,7 +28,9 @@
 
 static ssize_t stdin_read(vfs_node_t* node, uint8_t* buffer, size_t size, off_t offset)
 {
-	kprintf("Keine Eingabe implementiert");
+	while(size) {
+		size = kputs((char*)buffer);
+	}
 	return size;
 }
 
diff --git a/drivers/stdout/stdout.c b/drivers/stdout/stdout.c
index 268a4009..29fbb035 100644
--- a/drivers/stdout/stdout.c
+++ b/drivers/stdout/stdout.c
@@ -33,7 +33,7 @@ static ssize_t stdout_read(vfs_node_t* node, uint8_t* buffer, size_t size, off_t
 
 static ssize_t stdout_write(vfs_node_t* node, uint8_t* buffer, size_t size,  off_t offset)
 {
-	kprintf("%s", buffer);
+	size = kprintf("%s\0", buffer);
 	return size;
 }
 
diff --git a/kernel/syscall.c b/kernel/syscall.c
index 809ea4ec..ca0651f5 100644
--- a/kernel/syscall.c
+++ b/kernel/syscall.c
@@ -32,7 +32,7 @@ static int sys_read(int fd, const char *buf, size_t len)
 			(uint8_t*)buf, len, 
 			per_core(current_task)->fildes_table[fd].offset);
 	per_core(current_task)->fildes_table[fd].offset += readbytes;
-	/*kprintf("fd:%i, Dateilaenge:%i, Dateiinhalt: %s \n", fd, len, buf);*/
+	//kprintf("fd:%i, Dateilaenge:%i, Dateiinhalt: %s \n", fd, len, buf);
 	/* Beware: still reading above file limit! */
 	return readbytes; 
 }
@@ -40,12 +40,8 @@ static int sys_read(int fd, const char *buf, size_t len)
 static int sys_write(int fd, const char *buf, size_t len)
 {
 	unsigned int wrotebytes;
-	/* per_core(current_task)->fildes_table[fd].node->write = 1; */
-	wrotebytes = write_fs(
-			per_core(current_task)->fildes_table[fd].node, 
-			(uint8_t*)buf, len, 0);
-	/* per_core(current_task)->fildes_table[fd].offset); */
-	/* kprintf("ins Dateis. geschr. -- fd:%i, Dateilaenge:%i, Dateiinhalt: %s \n", fd, len, buf); */
+	wrotebytes = write_fs(per_core(current_task)->fildes_table[fd].node, (uint8_t*)buf, len, per_core(current_task)->fildes_table[fd].offset);
+	//kprintf("ins Dateis. geschr. -- fd:%i, Dateilaenge:%i, Dateiinhalt: %s \n", fd, wrotebytes, buf);
 	per_core(current_task)->fildes_table[fd].offset += wrotebytes;
 
 	return wrotebytes;
@@ -54,7 +50,7 @@ static int sys_write(int fd, const char *buf, size_t len)
 static int sys_open(const char* file, int flags, int mode)
 {
 	int fd;
-	for (fd = 0; fd < MAX_FILDES; fd++) {
+	for (fd = 3; fd < MAX_FILDES; fd++) {
 		if (per_core(current_task)->fildes_table[fd].node == NULL) {
 			per_core(current_task)->fildes_table[fd].node = findnode_fs((char*) file);
 			return fd;
@@ -118,28 +114,26 @@ int syscall_handler(uint32_t sys_nr, ...)
 			int fd = va_arg(vl, int);
 			const char* buf = va_arg(vl, const char*);
  			size_t len = va_arg(vl, size_t);
-			kprintf("%s", buf);
-			//ret = sys_read(fd, buf, len);
+			ret = sys_read(fd, buf, len);
 			break;
 		}
 	case __NR_write: {
 			int fd = va_arg(vl, int);
 			const char* buf = va_arg(vl, const char*);
 			size_t len = va_arg(vl, size_t);
-			kprintf("%s", buf);
-			//ret = sys_write(fd, buf, len);
+			ret = sys_write(fd, buf, len);
 			break;
 		}
 	case __NR_open: {
 			const char* file = va_arg(vl, const char*);
 			int flags = va_arg(vl, int);
 			int mode = va_arg(vl, int);
-			//ret = sys_open(file, flags, mode);
+			ret = sys_open(file, flags, mode);
 			break;
 		}
 	case __NR_close: {
 			int fd = va_arg(vl, int);
-			//ret = sys_close(fd);
+			ret = sys_close(fd);
  			break;
  		}
 	case __NR_sbrk: {
diff --git a/kernel/tasks.c b/kernel/tasks.c
index e9341558..5414c1b9 100644
--- a/kernel/tasks.c
+++ b/kernel/tasks.c
@@ -184,6 +184,10 @@ static int create_task(tid_t* id, entry_point_t ep, void* arg)
 			mailbox_wait_msg_init(&task_table[i].inbox);
 			memset(task_table[i].outbox, 0x00, sizeof(mailbox_wait_msg_t*)*MAX_TASKS);
 			task_table[i].outbox[per_core(current_task)->id] = &per_core(current_task)->inbox; 
+			task_table[i].fildes_table[0].node = findnode_fs("/dev/stdin");
+			task_table[i].fildes_table[1].node = findnode_fs("/dev/stdout");
+			task_table[i].fildes_table[2].node = findnode_fs("/dev/stderr");
+
 
 			if (id)
 				*id = i;	
@@ -533,7 +537,7 @@ int create_user_task(tid_t* id, const char* fname, char** argv)
 		}
 	}
 
-	if (argc < 0)
+	if (argc <= 0)
 		return -EINVAL;
 	if (buffer_size >= MAX_ARGS)
 		return -EINVAL;
diff --git a/kernel/tests.c b/kernel/tests.c
index c2d9a47b..71b91e20 100644
--- a/kernel/tests.c
+++ b/kernel/tests.c
@@ -102,7 +102,7 @@ static int STDCALL join_test(void* arg)
 
 int test_init(void)
 {
-	char* argv[] = {"/bin/tests", NULL};
+	char* argv[] = {"/bin/hello", NULL};
 
 	sem_init(&producing, 1);
 	sem_init(&consuming, 0);
diff --git a/newlib/examples/hello.c b/newlib/examples/hello.c
index 32382d08..861cb6f6 100644
--- a/newlib/examples/hello.c
+++ b/newlib/examples/hello.c
@@ -28,14 +28,27 @@ extern int errno;
 int main(int argc, char** argv)
 {
 	//int i;
-	//char* str = (char *)malloc(40 * sizeof(char));
-	//FILE* testfile;
- 	printf("hallo");
-	//testfile = fopen("/bin/test", "w+r");
-	//setbuf(testfile, NULL);
-	//fread(str, 1, 10, testfile);
-	//fwrite("wtest1\n", 1, 7, testfile);
-	//fread(str, 1, 10, testfile);
+	char* str = (char *)malloc(20 * sizeof(char));
+	char* str2 = (char *)malloc(20 * sizeof(char));
+
+	FILE* testfile;
+	testfile = fopen("/bin/test", "w+r");
+	setbuf(testfile, NULL);
+	fflush(NULL);
+	fread(str2, 1, 10, testfile);
+	fflush(NULL);
+	printf("Datei gelesen (/bin/test):%s\n", str2);
+	fflush(NULL);
+
+	setbuf(testfile, NULL);
+	fflush(NULL);
+	fwrite("wtest1", 1, 7, testfile);
+	setbuf(testfile, NULL);
+
+	fread(str, 1, 10, testfile);
+	fflush(NULL);
+
+	//printf("Aus Datei gelesen (/bin/test):%s\n", str);
 
 	return errno;
 }
diff --git a/newlib/examples/test b/newlib/examples/test
index 51d96d29..3d6ab3f2 100644
--- a/newlib/examples/test
+++ b/newlib/examples/test
@@ -1 +1,2 @@
 HalloXA!!
+