At 12:57 -0800 26/02/2011, Richard Green wrote:

> What is $gene_id?
Are you by any chance using '$' at the beginning of your search pattern instead of the end?
I have $ to designate the end of the row
$gene_id

$gene_id designates $gene_id period.

 > Why are you escaping the quote marks?
I thought it would be easier to perform substitution without them

What made you think that?

 > Why is there no space after 'gene_id'?
I guess there should be

You can guess as much as you like but Perl Regular Expressions don't care what you think or what you guess. Read perlvar and pelretut.

JD



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