From: address@is.invalid   
      
   Tom,   
      
   > if A gtr 1000 echo That's a letter   
   >   
   > or   
   >   
   > if 4A gtr 1000 echo That contains a letter   
   >   
   > This assumes that I know what the highest possible number will be, so if   
   > the first value is a number it will always be less.   
   >   
   > Is there a problem in doing this?   
      
   Yes.  A quick test just now shows that both of the above cause string   
   comparision.   
      
   And that means that any ASCII character below "0" will not be recognised as   
   a letter.  Just try "if $ gtr 1000"   
      
   IOW, you will need an "if lower than 0 or larger than 9" check - and hope   
   that any non-digit characters, when hidden inside the value, will not modify   
   that value.   
      
   Regards,   
   Rudy Wieser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)