diff --git a/libc/Makefile b/libc/Makefile
index 0a5e6358..cfc355ff 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -225,6 +225,7 @@ signal.o \
 sleep.o \
 stat.o \
 stdio.o \
+system.o \
 tfork.o \
 time.o \
 truncateat.o \
diff --git a/libc/include/stdlib.h b/libc/include/stdlib.h
index 5c528966..01dc6eb5 100644
--- a/libc/include/stdlib.h
+++ b/libc/include/stdlib.h
@@ -74,6 +74,7 @@ long strtol(const char* restrict, char** restrict, int);
 unsigned long strtoul(const char* restrict, char** restrict, int);
 unsigned long long strtoull(const char* restrict, char** restrict, int);
 long long strtoll(const char* restrict, char** restrict, int);
+int system(const char*);
 int unsetenv(const char*);
 int wctomb(char*, wchar_t);
 
@@ -130,7 +131,6 @@ void srandom(unsigned);
 double strtod(const char* restrict, char** restrict);
 float strtof(const char* restrict, char** restrict);
 long double strtold(const char* restrict, char** restrict);
-int system(const char*);
 int unlockpt(int);
 size_t wcstombs(char* restrict, const wchar_t *restrict, size_t);
 
diff --git a/libc/system.cpp b/libc/system.cpp
new file mode 100644
index 00000000..df52aa07
--- /dev/null
+++ b/libc/system.cpp
@@ -0,0 +1,49 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    system.cpp
+    Execute a shell command.
+
+*******************************************************************************/
+
+#include <sys/wait.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+
+extern "C" int system(const char* command)
+{
+	const int ret_error = command ? -1 : 0;
+	const int exit_error = command ? 127 : 0;
+	if ( !command )
+		command = "exit 1";
+	// TODO: Block SIGHCHLD, SIGINT, anda SIGQUIT while waiting.
+	pid_t childpid = fork();
+	if ( childpid < 0 )
+		return ret_error;
+	if ( childpid )
+	{
+		int status;
+		if ( waitpid(childpid, &status, 0) < 0 )
+			return ret_error;
+		return status;
+	}
+	execlp("sh", "sh", "-c", command, NULL);
+	_exit(exit_error);
+}