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# Contributing
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[![Gitter chat][gitter-image]][gitter-url]
[![Merged PRs][prs-merged-image]][prs-merged-url]
[![Issue stats][issuestats-image]][issuestats-url]
[![GitHub contributors][contributors-image]][contributors-url]
[![CLA assistant][cla-assistant-image]][cla-assistant-url]
[![license][license-image]][license-url]
[gitter-url]: https://gitter.im/tldr-pages/tldr
[gitter-image]: https://badges.gitter.im/tldr-pages/tldr.svg
[prs-merged-url]: https://github.com/tldr-pages/tldr/pulls?q=is:pr+is:merged
[prs-merged-image]: https://img.shields.io/github/issues-pr-closed-raw/tldr-pages/tldr.svg?label=merged+PRs
[issuestats-url]: http://isitmaintained.com/project/tldr-pages/tldr
[issuestats-image]: http://isitmaintained.com/badge/resolution/tldr-pages/tldr.svg
[contributors-url]: https://github.com/tldr-pages/tldr/graphs/contributors
[contributors-image]: https://img.shields.io/github/contributors/tldr-pages/tldr.svg
[cla-assistant-url]: https://cla-assistant.io/tldr-pages/tldr
[cla-assistant-image]: https://cla-assistant.io/readme/badge/tldr-pages/tldr
[license-url]: https://github.com/tldr-pages/tldr/blob/master/LICENSE.md
[license-image]: https://img.shields.io/github/license/tldr-pages/tldr.svg
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Contributions to the tldr-pages project are [most welcome ](GOVERNANCE.md )!
All `tldr` pages are stored in Markdown right here on GitHub.
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Just open an issue or send a pull request and we'll incorporate it as soon as possible.
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To get started, please [sign ](https://cla-assistant.io/tldr-pages/tldr ) the
[Contributor License Agreement ](https://gist.github.com/waldyrious/e50feec13683e565769fbd58ce503d4e ).
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*Note*: when submitting a new command, don't forget to check if there's already a pull request in progress for it.
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## Guidelines
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The basic format of a `tldr` page is a set of concrete usage examples.
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Here are a few guidelines to get started:
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1. Try to keep pages at around 5 examples. Pages can be longer if needed, but don't exceed 8 examples.
Remember, it's OK if the page doesn't cover everything; that's what `man` is for.
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2. When in doubt, keep new command-line users in mind. Err on the side of clarity rather than terseness.
For example, commands that require `sudo` should include it directly in the examples.
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3. Try to incorporate the spelled-out version of single-letter options in the example's description.
The goal is to allow people to *understand* the syntax of the commands, not just *memorize* it.
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4. Introduce options gradually, starting with the simplest command invocations,
and using more complex examples progressively.
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5. Focus on details specific to the command, and avoid explaining general UNIX concepts that could apply to any command
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(ex: relative/absolute paths, glob patterns/wildcards, special character escaping...).
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These are all guidelines, not strict rules.
Use proper judgement, keeping simplicity and user-friendliness as the top priority.
When in doubt, have a look at a few existing pages :).
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## Markdown format
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As a quick reference, the format of each page should match the following template:
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```
# command-name
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> Short, snappy description.
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> Preferably one line; two are acceptable if necessary.
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- Example description:
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`command -opt1 -opt2 -arg1 {{arg_value}}`
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- Example description:
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`command -opt1 -opt2`
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```
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For more detailed page formatting guidelines,
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refer to the [style guide ](contributing-guides/style-guide.md ).
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## Translations
Translation of pages can be done by simply creating the corresponding page in the appropriate top level language specific directory under the appropriate platform subdirectory.
When translating a page into a language that is not present yet, a new language specific directory must be created first.
Language specific directories must follow the pattern `pages.<language_tag>` , where `<language_tag>` is a [BCP 47 ](https://tools.ietf.org/html/bcp47 ) conforming tag in the form `<language>-<region>` , where:
- `<language>` is the shortest [ISO 639 ](https://en.wikipedia.org/wiki/ISO_639 ) language code for the chosen language (see [here ](https://en.wikipedia.org/wiki/List_of_ISO_639-2_codes ) for a complete list).
- `<region>` is the two-letter [ISO 3166-1 ](https://en.wikipedia.org/wiki/ISO_3166-1 ) region code for the chosen region (see [here ](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Officially_assigned_code_elements ) for a complete list).
Some examples:
- English (United Kingdom): `pages.en-GB` .
- Chinese (Taiwan): `pages.zh-TW` .
- Portuguese (Brazil): `pages.pt-BR` .
You can check the validity of BCP 47 tags [here ](http://schneegans.de/lv/ ).
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## Submitting a pull request
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The easiest way to submit a change is to just edit the page directly on the Github interface.
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Check out the step-by-step instructions (with screenshots) on
[Github Help ](https://help.github.com/articles/editing-files-in-another-user-s-repository/ ).
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Alternatively, you can do most of the process
[using git on the command line ](contributing-guides/git-terminal.md ).
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### Commit message
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For the commit message, use the following format:
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< command > : type of change
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Examples:
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- For a new page addition: `ls: add page`
- For a page edit: `cat: fix typo` , `git-push: add --force example`
- For a new translation of an existing page: `cp: add Tamil translation`
- For related changes to several pages: `grep, find, locate: synchronize format of wildcards`
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## Licensing
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`tldr` is licensed under the [MIT license ](https://github.com/tldr-pages/tldr/blob/master/LICENSE.md ).
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Any contributions to this project are governed by the
[Contributor License Agreement ](https://cla-assistant.io/tldr-pages/tldr ).