In the vein of other tools for an interactive approach check out visidata which gives a tty spreadsheet (pretty much anything csv, tsv, or xls that python can read) editor.

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re^3: Command-line utility to apply perl expressions to CSV file by Fletch
in thread Command-line utility to apply perl expressions to CSV files by gpvos

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