extdedup
The extdedup command removes duplicate rows from a CSV file based on external criteria.
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Syntax
qsv extdedup [options] <input_file> [<output_file>]
Description
The extdedup command is used to remove duplicate rows from a CSV file based on external criteria. This is useful for ensuring data integrity and removing redundant data.
Options
-c, --column <name>: Specify the column to check for duplicates--no-headers: When set, the first row will not be interpreted as headers
Examples
Remove Duplicates by Column
Remove duplicate rows based on the transaction_id column:
qsv extdedup -c transaction_id DLD_Transactions_English_500.csv | qsv table
Common Use Cases
- Ensuring data integrity
- Removing redundant data
Tips
- Verify the output to ensure duplicates are correctly removed
- Use in combination with other commands for complex data processing