Index: trunk/Ohana/src/opihi/lib.shell/parse.c
===================================================================
--- trunk/Ohana/src/opihi/lib.shell/parse.c	(revision 40329)
+++ trunk/Ohana/src/opihi/lib.shell/parse.c	(revision 40330)
@@ -145,8 +145,10 @@
     /* simple variable assignment */
     /* dvomath returns a new string, or NULL, with the result of the expression */
+    /* if dvomath returns NULL, the expression was not a math operation: treat as a string */
     val = dvomath (1, &V1, &size, 0);
     if (val == NULL) { 
       while (OHANA_WHITESPACE (*V1)) V1++;
       val = strcreate (V1);
+      init_error ();
     } 
     // save the result