Hi Monks, I am new in perl. I need to know what is the best approach to modify a text file(>15GB).I need to search and delete some data(row wise).Waiting for suggestions.text file is like

abc|xhagc|cgac|hchgc

[download]

Here I need to update to search the first column key and delete the row in very less time.

In reply to File modification by shivapm

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