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ffe — Extract fields from a flat database file and write to another format. A configuration file is requir

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extractcommandfromflatdatabaseclifieldsffe

Problem

How to use the ffe command: Extract fields from a flat database file and write to another format. A configuration file is required to interpret the input and format the output. More information: <https://ff-extractor.sourceforge.net/ffe.html>.

Solution

ffe — Extract fields from a flat database file and write to another format. A configuration file is required to interpret the input and format the output. More information: <https://ff-extractor.sourceforge.net/ffe.html>.

Display all input data using the specified data configuration:
ffe {{[-c|--configuration]}} {{path/to/config.ffe}} {{path/to/input}}


Convert an input file to an output file in a new format:
ffe --output={{path/to/output}} {{[-c|--configuration]}} {{path/to/config.ffe}} {{path/to/input}}


Select input structure and print format from definitions in ~/.fferc configuration file:
ffe {{[-s|--structure]}} {{structure}} {{[-p|--print]}} {{format}} {{path/to/input}}


Write only the selected fields:
ffe {{[-f|--field-list]}} "{{FirstName,LastName,Age}}" {{[-c|--configuration]}} {{path/to/config.ffe}} {{path/to/input}}


Write only the records that match an expression:
ffe {{[-e|--expression]}} "{{LastName=Smith}}" {{[-c|--configuration]}} {{path/to/config.ffe}} {{path/to/input}}


Display help:
ffe {{[-?|--help]}}

Code Snippets

Display all input data using the specified data configuration

ffe {{[-c|--configuration]}} {{path/to/config.ffe}} {{path/to/input}}

Convert an input file to an output file in a new format

ffe --output={{path/to/output}} {{[-c|--configuration]}} {{path/to/config.ffe}} {{path/to/input}}

Select input structure and print format from definitions in `~/.fferc` configuration file

ffe {{[-s|--structure]}} {{structure}} {{[-p|--print]}} {{format}} {{path/to/input}}

Write only the selected fields

ffe {{[-f|--field-list]}} "{{FirstName,LastName,Age}}" {{[-c|--configuration]}} {{path/to/config.ffe}} {{path/to/input}}

Write only the records that match an expression

ffe {{[-e|--expression]}} "{{LastName=Smith}}" {{[-c|--configuration]}} {{path/to/config.ffe}} {{path/to/input}}

Context

tldr-pages: common/ffe

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