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Martin Asser Hansen edited this page Oct 2, 2015 · 5 revisions

Biopiece: read_gff

Description

read_gff reads GFF (Generic Feature Format - version 3) data from one or more files.

For more about the GFF format:

http://www.sequenceontology.org/gff3.shtml

Usage

read_gff [options] -i <GFF file(s)>

Options

[-?          | --help]               #  Print full usage description.
[-i <files!> | --data_in=<files!>]   #  Comma separated list of files or glob expression to read.
[-n <uint>   | --num=<uint>]         #  Limit number of records to read.
[-I <file!>  | --stream_in=<file!>]  #  Read input stream from file  -  Default=STDIN
[-O <file>   | --stream_out=<file>]  #  Write output stream to file  -  Default=STDOUT
[-v          | --verbose]            #  Verbose output.

Examples

Consider the following GFF entries in the file test.gff

##gff-version 3
##sequence-region 2L  204333 23011544
2L      FlyBase chromosome_band -204333 1326937 .       +       .       ID=band-21_chromosome_band;Name=band-21;

Reading this file with read_gff results in:

read_gff -i test.gff

STRAND: +
ATT_ID: band-21_chromosome_band
Q_ID: 2L
SCORE: .
TYPE: chromosome_band
ATT_NAME: band-21
Q_BEG:  204334
Q_END: 1326936
ATT: ID=band-21_chromosome_band;Name=band-21;
PHASE: .
SOURCE: FlyBase
---

Notice how the ATT key has been split into key/value pairs that have been added to the record (ADD_ID and ATT_NAME).

See also

Author

Martin Asser Hansen - Copyright (C) - All rights reserved.

[email protected]

August 2007

License

GNU General Public License version 2

http://www.gnu.org/copyleft/gpl.html

Help

read_gff is part of the Biopieces framework.

http://www.biopieces.org

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