diff --git a/sys/shells.h b/sys/shells.h
new file mode 100644
index 0000000..b792cca
--- /dev/null
+++ b/sys/shells.h
@@ -0,0 +1,27 @@
+// MorgenGrauen MUDlib
+//
+// shells.h -- shell header
+//
+// $Id: shells.h 9555 2016-05-03 20:42:46Z Zesstra $
+
+#ifndef __SHELLS_H__
+#define __SHELLS_H__
+
+// properties
+
+#define P_CURRENTDIR "currentdir"
+#define P_LASTDIR "p_lib_lastdir"
+
+#endif // __SHELLS_H__
+
+#ifdef NEED_PROTOTYPES
+
+#ifndef __SHELLS_H_PROTO__
+#define __SHELLS_H_PROTO__
+
+// prototypes
+// no prototypes
+
+#endif // __SHELLS_H_PROTO__
+
+#endif	// NEED_PROTOYPES