csvdiff is a perl script for comparing two files of comma-separated values with each other. In contrast to standard diff, it will show the number of the record where the difference occurs, the column number, and (if provided) the fieldname which is different. The separator can be set to any value you want, not just a comma. It also provides support for multiple column keys, the ability to ignore case and trim leading/tailing spaces, and the ability to ignore selected columns such as timestamps.
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