auto import from //depot/cupcake/@135843
diff --git a/toolbox/exists.c b/toolbox/exists.c
new file mode 100644
index 0000000..e348668
--- /dev/null
+++ b/toolbox/exists.c
@@ -0,0 +1,16 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+int exists_main(int argc, char *argv[])
+{
+    struct stat s;
+
+    if(argc < 2) return 1;
+
+    if(stat(argv[1], &s)) {
+        return 1;
+    } else {
+        return 0;
+    }
+}