Yes, you are right and I definitely know it. As noted in my update above, I really meant to write:

s/^\s+|\s+$//g for grep {defined $_} ( $ipaddress, $prefix, $interface, $device, $location);

But, as I also said in my update, that does not work as I expected, the "for" does not seem to deliver to the s/// statement the elements supplied by the grep. I got it working quite easily using a map instead of a for, but it no longer has the relative cleverness I was looking for.

In reply to Re^3: Test if multiple variables are defined by Laurent_R
in thread Test if multiple variables are defined by stroke

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