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contributing-guides/style-guide: add block device rules (#5036)
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@ -64,6 +64,8 @@ Keep the following guidelines in mind when choosing tokens:
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But in a command like `wc -l {{file}}`, using `{{file}}` (without extension) is sufficient.
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7. If the example is clearer with an actual value rather than a generic placeholder, use the actual value.
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For example, use `iostat {{2}}` rather than `iostat {{interval_in_secs}}`.
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8. If a command performs irreversible changes to a file system or to user's devices, then write every example in a way that they cannot be unmindfully copy-pasted by the user.
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For example, instead of `ddrescue --force --no-scrape /dev/sda /dev/sdb` write `ddrescue --force --no-scrape {{/dev/sdX}} {{/dev/sdY}}` and use the `{{/dev/sdXY}}` placeholder for *block devices* instead of `/dev/sda1`.
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In general, tokens should make it as intuitive as possible
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to figure out how to use the command and fill it in with values.
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