diff --git a/regression/apps/execve/execve.c b/regression/apps/execve/execve.c
index 92c79bd83..a79921573 100644
--- a/regression/apps/execve/execve.c
+++ b/regression/apps/execve/execve.c
@@ -15,4 +15,4 @@ int main()
 	printf("Should not print\n");
 	fflush(stdout);
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/execve/hello.c b/regression/apps/execve/hello.c
index 26b3180f4..7530f0a91 100644
--- a/regression/apps/execve/hello.c
+++ b/regression/apps/execve/hello.c
@@ -16,4 +16,4 @@ int main(int argc, char *argv[], char *envp[])
 		printf("%s\n", envp[i]);
 	}
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/fork_c/fork.c b/regression/apps/fork_c/fork.c
index fe474c4b8..a83d6bc2b 100644
--- a/regression/apps/fork_c/fork.c
+++ b/regression/apps/fork_c/fork.c
@@ -14,4 +14,4 @@ int main()
 	}
 	fflush(stdout);
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/hello_c/hello.c b/regression/apps/hello_c/hello.c
index 98c7eddd4..c3ec64e05 100644
--- a/regression/apps/hello_c/hello.c
+++ b/regression/apps/hello_c/hello.c
@@ -6,4 +6,4 @@ int main()
 {
 	printf("hello world from hello_c!\n");
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/hello_pie/hello.c b/regression/apps/hello_pie/hello.c
index 6ea9b3f80..2a49408a9 100644
--- a/regression/apps/hello_pie/hello.c
+++ b/regression/apps/hello_pie/hello.c
@@ -6,4 +6,4 @@ int main()
 {
 	printf("hello world from hello_pie!\n");
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/network/socketpair.c b/regression/apps/network/socketpair.c
index bd2591b1a..fc43a610d 100644
--- a/regression/apps/network/socketpair.c
+++ b/regression/apps/network/socketpair.c
@@ -38,4 +38,4 @@ int main()
 		close(sockets[0]);
 	}
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/network/sockoption.c b/regression/apps/network/sockoption.c
index bf5ea6a64..1219ebc14 100644
--- a/regression/apps/network/sockoption.c
+++ b/regression/apps/network/sockoption.c
@@ -76,4 +76,4 @@ int main()
 	close(sockfd);
 
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/network/udp_client.c b/regression/apps/network/udp_client.c
index 2570bceec..7ecc142a8 100644
--- a/regression/apps/network/udp_client.c
+++ b/regression/apps/network/udp_client.c
@@ -59,4 +59,4 @@ int main()
 	// close socket
 	close(sock_fd);
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/network/udp_server.c b/regression/apps/network/udp_server.c
index 2898a3ab9..139863b84 100644
--- a/regression/apps/network/udp_server.c
+++ b/regression/apps/network/udp_server.c
@@ -63,8 +63,8 @@ int main()
 		exit(EXIT_FAILURE);
 	}
 
-	// 关闭socket
+	// Close socket
 	close(sock_fd);
 
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/network/unix_client.c b/regression/apps/network/unix_client.c
index 69fcb4fce..95810eaac 100644
--- a/regression/apps/network/unix_client.c
+++ b/regression/apps/network/unix_client.c
@@ -65,4 +65,4 @@ int main()
 	close(client_fd);
 
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/network/unix_server.c b/regression/apps/network/unix_server.c
index 19552b90f..2b8f40997 100644
--- a/regression/apps/network/unix_server.c
+++ b/regression/apps/network/unix_server.c
@@ -17,14 +17,14 @@ int main()
 	struct sockaddr_un server_addr, client_addr;
 	char buf[BUFFER_SIZE];
 
-	// 创建Server Socket
+	// Create the server socket
 	server_fd = socket(AF_UNIX, SOCK_STREAM, 0);
 	if (server_fd == -1) {
 		perror("socket");
 		exit(EXIT_FAILURE);
 	}
 
-	// 绑定Socket地址
+	// Bind the socket address
 	memset(&server_addr, 0, sizeof(server_addr));
 	server_addr.sun_family = AF_UNIX;
 	strncpy(server_addr.sun_path, SOCKET_NAME,
@@ -36,7 +36,7 @@ int main()
 		exit(EXIT_FAILURE);
 	}
 
-	// 监听连接请求
+	// Listen for an incoming connection
 	if (listen(server_fd, 5) == -1) {
 		perror("listen");
 		exit(EXIT_FAILURE);
@@ -44,7 +44,7 @@ int main()
 
 	printf("Server is listening...\n");
 
-	// 接收连接请求
+	// Accept the incoming connection
 	len = sizeof(client_addr);
 	accepted_fd = accept(server_fd, (struct sockaddr *)&client_addr, &len);
 	if (accepted_fd == -1) {
@@ -64,7 +64,8 @@ int main()
 	printf("Server is connected to client\n");
 	char *mesg = "Hello from unix socket server";
 	write(accepted_fd, mesg, strlen(mesg));
-	// 读取客户端发送的数据并打印
+
+	// Read data from the client
 	memset(buf, 0, BUFFER_SIZE);
 	if (read(accepted_fd, buf, BUFFER_SIZE) == -1) {
 		perror("read");
@@ -72,10 +73,10 @@ int main()
 	}
 	printf("Server Received: %s\n", buf);
 
-	// 关闭Socket
+	// Close the socket
 	close(accepted_fd);
 	close(server_fd);
 	unlink(SOCKET_NAME);
 
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/pthread/pthread_test.c b/regression/apps/pthread/pthread_test.c
index 3a8416e00..5e24d1807 100644
--- a/regression/apps/pthread/pthread_test.c
+++ b/regression/apps/pthread/pthread_test.c
@@ -64,19 +64,19 @@ static void *thread_func(void *_arg)
 static int test_mutex_with_concurrent_counter(void)
 {
 	/*
-     * Multiple threads are to increase a global counter concurrently
-     */
+	 * Multiple threads are to increase a global counter concurrently
+	 */
 	volatile unsigned long global_count = 0;
 	pthread_t threads[NTHREADS];
 	struct thread_arg thread_args[NTHREADS];
 	/*
-     * Protect the counter with a mutex
-     */
+	 * Protect the counter with a mutex
+	 */
 	pthread_mutex_t mutex;
 	pthread_mutex_init(&mutex, NULL);
 	/*
-     * Start the threads
-     */
+	 * Start the threads
+	 */
 	for (int ti = 0; ti < NTHREADS; ti++) {
 		struct thread_arg *thread_arg = &thread_args[ti];
 		thread_arg->ti = ti;
@@ -91,8 +91,8 @@ static int test_mutex_with_concurrent_counter(void)
 		}
 	}
 	/*
-     * Wait for the threads to finish
-     */
+	 * Wait for the threads to finish
+	 */
 	for (int ti = 0; ti < NTHREADS; ti++) {
 		if (pthread_join(threads[ti], NULL) < 0) {
 			printf("ERROR: pthread_join failed (ti = %d)\n", ti);
@@ -100,8 +100,8 @@ static int test_mutex_with_concurrent_counter(void)
 		}
 	}
 	/*
-     * Check the correctness of the concurrent counter
-     */
+	 * Check the correctness of the concurrent counter
+	 */
 	if (global_count != EXPECTED_GLOBAL_COUNT) {
 		printf("ERROR: incorrect global_count (actual = %ld, expected = %ld)\n",
 		       global_count, EXPECTED_GLOBAL_COUNT);
@@ -247,8 +247,8 @@ static int test_mutex_with_cond_wait(void)
 	pthread_cond_t cond_val = PTHREAD_COND_INITIALIZER;
 	pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
 	/*
-     * Start the threads waiting on the condition variable
-     */
+	 * Start the threads waiting on the condition variable
+	 */
 	for (int ti = 0; ti < NTHREADS; ti++) {
 		struct thread_cond_arg *thread_arg = &thread_args[ti];
 		thread_arg->ti = ti;
@@ -264,8 +264,8 @@ static int test_mutex_with_cond_wait(void)
 		}
 	}
 	/*
-     * Unblock all threads currently waiting on the condition variable
-     */
+	 * Unblock all threads currently waiting on the condition variable
+	 */
 	while (exit_thread_count < NTHREADS) {
 		pthread_mutex_lock(&mutex);
 		val = 1;
@@ -277,8 +277,8 @@ static int test_mutex_with_cond_wait(void)
 		pthread_mutex_unlock(&mutex);
 	}
 	/*
-     * Wait for the threads to finish
-     */
+	 * Wait for the threads to finish
+	 */
 	for (int ti = 0; ti < NTHREADS; ti++) {
 		if (pthread_join(threads[ti], NULL) < 0) {
 			printf("ERROR: pthread_join failed (ti = %d)\n", ti);
@@ -294,4 +294,4 @@ int main()
 	test_robust_mutex_with_concurrent_counter();
 	// test_mutex_with_cond_wait();
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/regression/apps/signal_c/signal_test.c b/regression/apps/signal_c/signal_test.c
index 98f48b117..cfe809eb9 100644
--- a/regression/apps/signal_c/signal_test.c
+++ b/regression/apps/signal_c/signal_test.c
@@ -372,4 +372,4 @@ int main()
 	test_sigchld();
 	test_sigaltstack();
 	return 0;
-}
\ No newline at end of file
+}