diff --git a/extlibs/exec.cpp b/extlibs/exec.cpp
new file mode 100644
index 0000000..d0f6f83
--- /dev/null
+++ b/extlibs/exec.cpp
@@ -0,0 +1,16 @@
+#include "ground_lib.h"
+
+GroundValue exec(GroundValue* args, int arg_count) {
+    VALIDATE_ARGS_1(GROUND_STRING);
+    int exec = system(GET_STRING(args[0]));
+    return GROUND_INT_VAL(exec);
+}
+
+GROUND_LIBRARY_INTERFACE()
+
+GROUND_LIBRARY_INIT()
+    REGISTER_GROUND_FUNCTION(exec);
+GROUND_LIBRARY_INIT_END()
+
+GROUND_LIBRARY_CLEANUP()
+GROUND_LIBRARY_CLEANUP_END()