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## Introduction

Welcome to CSVfix 1.7.

If you have any dealings at all with data and databases, then you almost certainly will have to deal with comma-separated values (CSV) data. Unfortunately, the CSV files you are given, or are required to produce, never seem to be in quite the right format for your particular business application. And because of the structure of CSV records, using standard text processing tools like sed, awk and perl is not as simple as it might be.

CSVfix aims to provide a solution to these problems. It is a command-line stream editor specifically designed to deal with CSV data. With it you can, among many other things:

- Convert fixed format, multi-line, and DSV files to CSV.
- Reorder, remove, split and merge fields.
- Sort CSV data on different CSV fields.
- Convert case, trim leading & trailing spaces.
- Search for specific content using regular expressions.
- Filter out duplicate data or data on exclusion lists.
- Perform sed/perl style editing.
- Enrich with data from other sources.
- Add sequence numbers, fixed text and file source information.
- Split large CSV files into smaller files based on field contents.
- Perform arithmetic calculations on individual fields.
- Validate CSV data against a collection of validation rules.
- Convert between CSV and XML, fixed format, SQL, DSV and plain text.
- Check for differences between CSV files.

Please also see the Problems & Solutions section for some common problems and their CSVfix solution.. See the Change Log for information on what is new in this release, and the Commands section for a list of all CSVfix commands.

CSVfix is Free Open Source Software, licensed under the MIT License. If you would like to encourage its development, please consider making a donation.

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