34 lines
1.5 KiB
Markdown
34 lines
1.5 KiB
Markdown
---
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layout: "docs"
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page_title: "Fix - Command-Line"
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description: |-
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The `packer fix` Packer command takes a template and finds backwards incompatible parts of it and brings it up to date so it can be used with the latest version of Packer. After you update to a new Packer release, you should run the fix command to make sure your templates work with the new release.
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---
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# Command-Line: Fix
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The `packer fix` Packer command takes a template and finds backwards incompatible
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parts of it and brings it up to date so it can be used with the latest version
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of Packer. After you update to a new Packer release, you should run the
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fix command to make sure your templates work with the new release.
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The fix command will output the changed template to standard out, so you
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should redirect standard using standard OS-specific techniques if you want to
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save it to a file. For example, on Linux systems, you may want to do this:
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```
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$ packer fix old.json > new.json
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```
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If fixing fails for any reason, the fix command will exit with a non-zero
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exit status. Error messages appear on standard error, so if you're redirecting
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output, you'll still see error messages.
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-> **Even when Packer fix doesn't do anything** to the template,
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the template will be outputted to standard out. Things such as configuration
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key ordering and indentation may be changed. The output format however, is
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pretty-printed for human readability.
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The full list of fixes that the fix command performs is visible in the
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help output, which can be seen via `packer fix -h`.
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