Lấy 1 cột từ text
Trích 1 field từ CSV, TSV, pipe-separated text hay log line khi file export có nhiều cột hơn bạn cần.
Pick out one column from a delimited list. Set the delimiter (comma, tab, pipe…), choose the column number, and grab just that field from every row.
Does it handle quoted CSV fields?
No — this is a simple split. For full CSV parsing, normalise quotes first.