# NAME ETL::Yertl - ETL with a Shell # VERSION version 0.026 # STATUS Coverage Status # SYNOPSIS ### On a shell... # Convert file to Yertl's format $ yfrom csv file.csv >work.yml $ yfrom json file.json >work.yml # Mask document $ ymask 'field/inner' work.yml >masked.yml # Convert file to output format $ yto csv work.yml $ yto json work.yml # Parse HTTP logs into documents $ ygrok '%{LOG.HTTP_COMMON}' httpd.log # Read data from a database $ ysql db_name 'SELECT * FROM employee' # Write data to a database $ ysql db_name 'INSERT INTO employee ( id, name ) VALUES ( $.id, $.name )' ### In Perl... use ETL::Yertl; # XXX: To do: Perl API # DESCRIPTION ETL::Yertl is an ETL for shells. It is designed to accept data from multiple formats (CSV, JSON), manipulate them using simple tools, and then convert them to an output format. Yertl will have tools for: - Extracting data from databases (MySQL, Postgres, MongoDB) - Loading data into databases - Extracting data from web services - Writing data to web services - Distributing data through messaging APIs (ZeroMQ) # SEE ALSO - [http://preaction.me/yertl](http://preaction.me/yertl) The Yertl home page. ## Yertl Tools - [yfrom](https://metacpan.org/pod/yfrom) Convert incoming data (CSV, JSON) to Yertl documents. - [yto](https://metacpan.org/pod/yto) Convert Yertl documents into another format (CSV, JSON). - [ygrok](https://metacpan.org/pod/ygrok) Parse lines of text into Yertl documents. - [ysql](https://metacpan.org/pod/ysql) Read/write documents from SQL databases. - [ymask](https://metacpan.org/pod/ymask) Filter documents with a mask, letting only matching fields through. - [yq](https://metacpan.org/pod/yq) A powerful mini-language for munging and filtering. ## Other Tools Here are some other tools that can be used with Yertl - jq [http://stedolan.github.io/jq/](http://stedolan.github.io/jq/) A filter for JSON documents. The inspiration for [yq](https://metacpan.org/pod/yq). # AUTHOR Doug Bell # COPYRIGHT AND LICENSE This software is copyright (c) 2015 by Doug Bell. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.