Copy, adapt, ship

Common CSV jobs, in plain Go.

Each recipe starts with a real command-line workflow and uses the smallest set of simplecsv operations needed to finish it.

01 / FILTER

Keep the rows that matter.

Filter by status, parse a numeric field, normalize a column, and write a smaller export.

Open recipe -> 02 / COMBINE

Join or stack files.

Enrich one CSV from another, concatenate monthly exports, or align columns by name.

Open recipe -> 03 / REPORT

Summarize without SQL.

Group by one or more fields, count rows, sum amounts, and sort the resulting report.

Open recipe -> 04 / OPERATE

Make exports safer.

Handle BOMs and delimiters, bound untrusted reads, and sanitize values headed for spreadsheets.

Open recipe ->

Which recipe should I start with?

If your tool has one input and one output, start with filter and transform. If the value comes from multiple files, use combine files before shaping the result. If the output is a report rather than a detail export, go straight to summarize.