> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/harness-ai/use-harness-cli/harness-cli.md).

# Harness CLI

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[Overview](/harness-ai/use-harness-cli/harness-cli/harness-cli-overview.md)
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[Install and Upgrade](/harness-ai/use-harness-cli/harness-cli/install-and-upgrade.md)
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[Authenticate](/harness-ai/use-harness-cli/harness-cli/authenticate.md)
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[Supported Resources](/harness-ai/use-harness-cli/harness-cli/supported-resources-and-actions.md)
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[Global Flags and Output](/harness-ai/use-harness-cli/harness-cli/global-flags-and-output.md)
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[Harness CLI Commands](/harness-ai/use-harness-cli/harness-cli/harness-cli-commands.md)
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[Troubleshooting](/harness-ai/use-harness-cli/harness-cli/troubleshooting.md)
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