/(\S*)\s+(\S*)/ or next;

The OP was specifically asking about the problem when one of the columns is empty. It seems this solution will just skip any such line, which I don't think was the OP's intention.

Update as jasonk points out, this is rubbish. I'd misread the * as +.

Hugo

In reply to Re: Re: making a single column out of a two-column text file by hv
in thread making a single column out of a two-column text file by allolex

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