And if the list of items to delete is _really_ small, I just use egrep from the command line:

egrep -v '^(item1|item2|item3|item4|item5),' input_file > output_file

In reply to Re^5: 15 billion row text file and row deletes - Best Practice? by jhourcle
in thread 15 billion row text file and row deletes - Best Practice? by awohld

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