https://github.com/alexpreynolds/subset

Draw a subset of lines from a text file
https://github.com/alexpreynolds/subset

cplusplus-14 genomics sample sampling subset text-processing

Last synced: about 1 year ago
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Draw a subset of lines from a text file

• Host: GitHub
• URL: https://github.com/alexpreynolds/subset
• Owner: alexpreynolds
• License: gpl-3.0
• Created: 2017-06-09T18:21:02.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2017-06-09T20:11:55.000Z (about 9 years ago)
• Last Synced: 2025-02-17T16:38:49.280Z (over 1 year ago)
• Topics: cplusplus-14, genomics, sample, sampling, subset, text-processing
• Language: C++
• Size: 26.4 KB
• Stars: 1
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# subset

Draw a subset of lines from an input text file, using either a start index and length or by specifying a file of 0-indexed line numbers.

When specifying a file containing line numbers, the indices are first sorted to allow fast filtering of the input file in one pass.

Output can be written to the standard output stream (`stdout`) or to a regular file via `--output=`

For debugging, you can use the `--prefix-with-indices` option to write lines with their associated line number.

See the `test/makefile` tests for a quick demonstration of options and usage.