Thank you :) I am a very slow learner, so it will take me quite a while for me to digest and reply you.

Before that, I want to clarify something really noob: 

my( $infh ) = @_;

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@_ refer to the whole dataset right? But if I want to only include data from column 4 onward to the end, I have to write a function to split the data and then take column 4 to end and put it into @_?

In reply to Re^20: How to store the output from foreach loop into variable/array without printing? by hellohello1
in thread How to store the output from foreach loop into variable/array without printing? by hellohello1

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