https://github.com/ctberthiaume/decol

A tool to delete columns from a CSV file
https://github.com/ctberthiaume/decol

command-line-tool csv python

Last synced: about 16 hours ago
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A tool to delete columns from a CSV file

• Host: GitHub
• URL: https://github.com/ctberthiaume/decol
• Owner: ctberthiaume
• License: mit
• Created: 2018-05-03T00:03:36.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2018-06-20T22:05:38.000Z (almost 8 years ago)
• Last Synced: 2025-12-15T07:25:50.037Z (4 months ago)
• Topics: command-line-tool, csv, python
• Language: Python
• Size: 22.5 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

          
decol

=====

[![Build Status](https://travis-ci.org/ctberthiaume/decol.svg?branch=master)](https://travis-ci.org/ctberthiaume/decol)

A tool to drop or keep columns from a CSV file.

### Features

* columns can be specified as 1-based integer indexes or column headers

* multiple indexes or headers can be specified as a comma-separated list

* negative indexes are supported

* index ranges are also supported, e.g. 1:2 for the first two column

### Usage

```

$ decol -h

Usage: decol [OPTIONS] INPUT OUTPUT

  A tool to drop or keep columns from a CSV file.

Options:

  -c, --columns COLUMNS       Comma-separated list of 1-based column indexes

                              to remove. Negative integers will index from the

                              end. May use a range, e.g. 1:2 or -3:-2 for

                              first and second of three columns. Ranges must

                              always be given in left to right column order

                              for both positive and negative indexes. Mutually

                              exclusive with --headers.

  -H, --headers HEADERS       Comma-separated list of columns to remove by

                              first-line header. Mutually exclusive with

                              --columns.

  -s, --sep SEPARATOR         Column separator.  [default: ,]

  -o, --output-sep SEPARATOR  Output column separator. [default: --sep value]

  --keep                      Keep only the specified columns in the order

                              specified in --columns or --headers.  [default:

                              False]

  --version                   Show the version and exit.

  -h, --help                  Show this message and exit.

```