open is spelt open, not OPEN and the same goes for close, split and print. Perl is case sensitive.

As to why $SKU isn't printing what you expect, I can't say. You didn't show us a (small) sample of your input.

In reply to Re: Error Undefined subroutine &main::OPEN called at C:\Perl\sku_corr2.pl line 8. by FunkyMonk
in thread Error Undefined subroutine &main::OPEN called at C:\Perl\sku_corr2.pl line 8. by WBWARD

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