https://github.com/flightaware/tsvcut-c

cut out specific fields from a TSV (tab separated values) file containing alternating key-value pairs
https://github.com/flightaware/tsvcut-c

command-line-tool cut tsv

Last synced: 11 months ago
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cut out specific fields from a TSV (tab separated values) file containing alternating key-value pairs

• Host: GitHub
• URL: https://github.com/flightaware/tsvcut-c
• Owner: flightaware
• License: bsd-3-clause
• Created: 2017-08-11T14:20:09.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2021-08-17T20:53:41.000Z (almost 5 years ago)
• Last Synced: 2024-11-08T21:39:22.518Z (over 1 year ago)
• Topics: command-line-tool, cut, tsv
• Language: C
• Size: 8.79 KB
• Stars: 2
• Watchers: 7
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# tsvcut-c

_Native C version of bovine/tsvcut_

This is a simple command-line program to cut out specific fields from

a TSV (tab separated values) file and return just those values.  Its

behavior is inspired by the UNIX cut(1) command, but is specifically

tailored for the TSV file format.

All TSV input files are expected to be lines of alternating

key-value pairs that are separated by tab characters.  The ordering of

fields can be vary between lines, as long as consistent field names

are used.  Some lines may include fields that are not present on other

lines.  For example:

````

color	blue	fruit	blueberry	price	1.99

color	red	fruit	strawberry	price	3.99	sale	2.99

color	yellow	price	2.49	fruit	banana

````

## Options

 -t Output column names inline, retaining the key-value format... null columns are not output

 -h Output column names as header

 -n NULL Output NULL string as null

## Examples

The tsvcut command should be run with the list of desired fields on

its command-line, and the TSV file supplied as stdin (using

redirection or pipes):

    tsvcut color price < fruits.tsv

    blue	1.99

    red	3.99

    yellow	2.49

If you specify the -t option, then you will receive the field names too:

    tsvcut -t color price < fruits.tsv

    color	blue	price	1.99

    color	red	price	3.99

    color	yellow	price	2.49

## Notes

Maximum line length is 1MB