[no subject]

I think the easiest way to do this in ksh is:

${XYZ:-$ABC}

If XYZ is not set, then the value of ABC is evaluated and returned.  As 
long as XYZ is never set to anything, this construct will always 
re-evaluate ABC and return that value.

This may or may not work for you depending ont the context in which 
you'll use it.

I don't know if that works in bash, to tired to try... :)

-- 
Until later, Geoffrey                     Registered Linux User #108567
Building secure systems in spite of Microsoft


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