Recfiles
| Filename extension | .rec |
|---|---|
| Type of format | Data interchange |
| Website | www |
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
- ↑ Marchesi, Jose E (2019-01-03). "Purpose". GNU Recutils Manual. https://www.gnu.org/software/recutils/manual/Purpose.html.
- ↑ James Tomasino (2020-01-26). "GNU Recutils". https://labs.tomasino.org/gnu-recutils/.
- ↑ "GNU Recutils - GNU Project - Free Software Foundation". https://www.gnu.org/software/recutils/.
- ↑ František Kučera (2019-04-08). "Relational pipes and GNU Recutils". https://lists.gnu.org/archive/html/help-recutils/2019-04/msg00000.html.
- ↑ "Python-recutils". 12 January 2022. https://github.com/maninya/python-recutils/.
- ↑ "Aisamanra/Rrecutils". 13 January 2022. https://github.com/aisamanra/rrecutils/.
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