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Recfiles

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recfiles
Filename extension.rec
Type of formatData interchange
Websitewww.gnu.org/software/recutils/

recfiles is a file format for human-editable, plain text databases.[1][2]

Databases using this file format can be edited using any text editor. recfiles allow for basic relational database operations, typing, auto-incrementing, as well as a simple join operation.

Recutils is a collection of tools, like recfmt, recsel, and rec2csv used to work with recfile databases.[3] Various software libraries support the format.[4][5][6]

Syntax

Data are stored in text files with empty lines separating records. Fields within a record are lines starting with their name and a colon; it is possible to wrap long entries. Multiple record types can be maintained in a single text file.

Example

# This is a recfile document.

%rec: Texts
%type: Year int

Author: Doug McIlroy
Year: 1964
Note: The Origin of Unix Pipes

Title: Unix Text Processing
Author: Dale Dougherty
Author: Tim O'Reilly
Year: 1987
Publisher: Hayden Books

Author: William Shakespeare
Title: Hamlet
Year: 1599
Year: 1600
Year: 1601

This example command would output the following three lines (of the two original entries, one having two authors): 

$ recsel -e 'Year > "1900"' -p Author
Author: Doug McIlroy
Author: Dale Dougherty
Author: Tim O'Reilly

See also

References

  1. ↑ Marchesi, Jose E (2019-01-03). "Purpose". GNU Recutils Manual. https://www.gnu.org/software/recutils/manual/Purpose.html. 
  2. ↑ James Tomasino (2020-01-26). "GNU Recutils". https://labs.tomasino.org/gnu-recutils/. 
  3. ↑ "GNU Recutils - GNU Project - Free Software Foundation". https://www.gnu.org/software/recutils/. 
  4. ↑ František Kučera (2019-04-08). "Relational pipes and GNU Recutils". https://lists.gnu.org/archive/html/help-recutils/2019-04/msg00000.html. 
  5. ↑ "Python-recutils". 12 January 2022. https://github.com/maninya/python-recutils/. 
  6. ↑ "Aisamanra/Rrecutils". 13 January 2022. https://github.com/aisamanra/rrecutils/. 



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