diff --git a/userspace/programs/Shell/main.cpp b/userspace/programs/Shell/main.cpp
index bf1927d0..449afc6a 100644
--- a/userspace/programs/Shell/main.cpp
+++ b/userspace/programs/Shell/main.cpp
@@ -353,187 +353,6 @@ BAN::Optional<int> execute_builtin(BAN::Vector<BAN::String>& args, int fd_in, in
 			execl("/bin/Terminal", "Terminal", NULL);
 		waitpid(pid, nullptr, 0);
 	}
-	else if (args.front() == "page-fault-test"_sv)
-	{
-		volatile int* ptr = nullptr;
-		*ptr = 0;
-	}
-	else if (args.front() == "kill-test"_sv)
-	{
-		pid_t pid = fork();
-		if (pid == 0)
-		{
-			fprintf(fout, "child\n");
-			for (;;);
-		}
-		if (pid == -1)
-		{
-			perror("fork");
-			return 1;
-		}
-
-		sleep(1);
-		if (kill(pid, SIGSEGV) == -1)
-		{
-			perror("kill");
-			return 1;
-		}
-	}
-	else if (args.front() == "signal-test"_sv)
-	{
-		pid_t pid = fork();
-		if (pid == 0)
-		{
-			dup2(fileno(fout), STDOUT_FILENO);
-			if (signal(SIGSEGV, [](int) { printf("SIGSEGV\n"); }) == SIG_ERR)
-			{
-				perror("signal");
-				exit(1);
-			}
-			printf("child\n");
-			for (;;);
-		}
-		if (pid == -1)
-		{
-			perror("fork");
-			return 1;
-		}
-
-		sleep(1);
-		if (kill(pid, SIGSEGV) == -1)
-		{
-			perror("kill");
-			return 1;
-		}
-
-		sleep(1);
-		if (kill(pid, SIGTERM) == -1)
-		{
-			perror("kill");
-			return 1;
-		}
-	}
-	else if (args.front() == "printf-test"_sv)
-	{
-		fprintf(fout, " 0.0:   %f\n", 0.0f);
-		fprintf(fout, " 123.0: %f\n", 123.0f);
-		fprintf(fout, " 0.123: %f\n", 0.123f);
-		fprintf(fout, " NAN:   %f\n", NAN);
-		fprintf(fout, "+INF:   %f\n", INFINITY);
-		fprintf(fout, "-INF:   %f\n", -INFINITY);
-	}
-	else if (args.front() == "cd"_sv)
-	{
-		if (args.size() > 2)
-		{
-			fprintf(fout, "cd: too many arguments\n");
-			return 1;
-		}
-
-		BAN::StringView path;
-
-		if (args.size() == 1)
-		{
-			if (const char* path_env = getenv("HOME"))
-				path = path_env;
-			else
-				return 0;
-		}
-		else
-			path = args[1];
-
-		if (chdir(path.data()) == -1)
-			ERROR_RETURN("chdir", 1);
-	}
-	else if (args.front() == "time"_sv)
-	{
-		args.remove(0);
-
-		timespec start, end;
-
-		if (clock_gettime(CLOCK_MONOTONIC, &start) == -1)
-			ERROR_RETURN("clock_gettime", 1);
-
-		int ret = execute_command(args, fd_in, fd_out);
-
-		if (clock_gettime(CLOCK_MONOTONIC, &end) == -1)
-			ERROR_RETURN("clock_gettime", 1);
-
-		uint64_t total_ns = 0;
-		total_ns += (end.tv_sec - start.tv_sec) * 1'000'000'000;
-		total_ns += end.tv_nsec - start.tv_nsec;
-
-		int secs  =  total_ns / 1'000'000'000;
-		int msecs = (total_ns % 1'000'000'000) / 1'000'000;
-
-		fprintf(fout, "took %d.%03d s\n", secs, msecs);
-
-		return ret;
-	}
-	else if (args.front() == "test-strtox")
-	{
-#define TEST(num, base) do { errno = 0; printf("strtol(\"" num "\", nullptr, " #base ") = %ld ", strtol(num, nullptr, base)); puts(errno ? strerrorname_np(errno) : ""); } while (false)
-		TEST("0", 10);
-		TEST("", 10);
-		TEST("+", 10);
-		TEST("123", 10);
-		TEST("-123", 10);
-		TEST("7fffffffffffffff", 10);
-		TEST("7fffffffffffffff", 16);
-		TEST("8000000000000000", 16);
-		TEST("-8000000000000000", 16);
-		TEST("-8000000000000001", 16);
-		TEST("123", 0);
-		TEST("0123", 0);
-		TEST("0x123", 0);
-		TEST("123", 1);
-		TEST("hello", 10);
-		TEST("hello", 36);
-#undef TEST
-#define TEST(num, base) do { errno = 0; printf("strtoul(\"" num "\", nullptr, " #base ") = %lu ", strtoul(num, nullptr, base)); puts(errno ? strerrorname_np(errno) : ""); } while (false)
-		TEST("0", 10);
-		TEST("123", 10);
-		TEST("-123", 10);
-		TEST("-1", 10);
-		TEST("fffffffffffffff", 16);
-		TEST("ffffffffffffffff", 16);
-		TEST("10000000000000000", 16);
-#undef TEST
-#if __enable_sse
-#define TEST(num) do { errno = 0; printf("strtod(\"" num "\", nullptr) = %e ", strtod(num, nullptr)); puts(errno ? strerrorname_np(errno) : ""); } while (false)
-		TEST("0");
-		TEST(".1");
-		TEST("1.");
-		TEST("0x.1");
-		TEST("0x1.");
-		TEST("123");
-		TEST("-123");
-		TEST("0x123");
-		TEST("123.456");
-		TEST("-123.456");
-		TEST("1.2e5");
-		TEST("1.e5");
-		TEST(".2e5");
-		TEST("0x1.2p5");
-		TEST("0x1.p5");
-		TEST("0x.2p5");
-		TEST("1e999");
-		TEST("-1e999");
-		TEST("1e308");
-		TEST("1e-307");
-		TEST("1e309");
-		TEST("1e-308");
-		TEST("0.00000000001e312");
-		TEST("1000000000000e-312");
-		TEST("0e999");
-		TEST("0e-999");
-		TEST("1237754.446f");
-		TEST("inf");
-		TEST("-inf");
-		TEST("nan");
-#undef TEST
-#endif
-	}
 	else
 	{
 		return {};