in reply to How to compare hash values to array values in Perl

> Then, I want to compare the second column of table.txt with the first column of values.txt.

you have 3 nested loops, this must be wrong.

Just read table.txt ONCE (open,loop,close) into a big hash with the numbers (second-column) as keys.

Then while reading values.txt check this hash (open,loop and test, close)

2 unnested loops, that's all you need.

HTH :)

Cheers Rolf

( addicted to the Perl Programming Language)

update

corrected typo, thx Athanasius! :)

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