---
name: "Catmandu::Cmd::breaker"
section: "3pm"
platform: "linux"
package: "libcatmandu-breaker-perl"
version: "0.141-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Catmandu::Cmd::breaker"
---

# Catmandu::Cmd::breaker(3pm)

Parse Catmandu::Breaker exports

## NAME

Catmandu::Cmd::breaker - Parse Catmandu::Breaker exports

## EXAMPLES

```
  catmandu breaker [<OPTIONS>] <BREAKER.FILE>
  $ catmandu convert XML --path book to Breaker --handler xml < t/book.xml > data.breaker
  $ catmandu breaker data.breaker
  # verbose output
  $ catmandu breaker -v data.breaker
  # The breaker command needs to know the unique fields in the dataset to build statistics
  # By default it will scan the whole file for fields. This can be a very
  # time consuming process. With --maxscan one can limit the number of lines
  # in the breaker file that can be scanned for unique fields
  $ catmandu breaker -v --maxscan 1000000 data.breaker
  # Alternatively the fields option can be used to specify the unique fields
  $ catmandu breaker -v --fields 245a,022a data.breaker
  $ cat data.breaker | cut -f 2 | sort -u > fields.txt
  $ catmandu breaker -v --fields fields.txt data.breaker
  # Export statistics as CSV. See L<Catmandu::Exporter::Stat> for supported formats.
  $ catmandu breaker --as CSV data.breaker
```