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miller

CLI

Like awk/sed/cut/join/sort for name-indexed data (CSV, JSON, TSV).

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data#csv#json#tsv#data-processing

Installation

Homebrewbrew install miller

Links

🌐 Homepage📦 Repository

License

BSD-2-Clause

AI Agent Notes

Swiss-army knife for CSV/JSON/TSV — filter, transform, aggregate

When to use

Processing structured data files with awk-like power

Examples
  • mlr --csv filter '$age > 30' data.csv
  • mlr --csv stats1 -a mean,sum -f salary -g department data.csv
  • mlr --json sort-within-records data.json

Proven Recipes

Filter CSV rows by condition🟢 97% success
mlr --csv filter '$age > 30' data.csv
Compute stats grouped by column🟢 95% success
mlr --csv stats1 -a mean,sum -f salary -g department data.csv
Convert CSV to JSON🟢 98% success
mlr --c2j cat data.csv
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