Can you please show what you mean by "using a wild card in one file to match multiple lines in the second file"?

A regex "wild card"? Something else? This is not clear to me.

As a side note, please note that using a hash might be much more efficient than scanning an entire array for each record of the other array. But, of course, that would probably not be possible with a wild card.

In reply to Re: compare contents of 2 file having wildcards by Laurent_R
in thread compare contents of 2 file having wildcards by sk35

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