40 lines
881 B
Markdown
40 lines
881 B
Markdown
---
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title: "Docker Save"
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type: concept
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tags: [docker, image, export]
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sources: [docker-images-transfer-guide]
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last_updated: 2026-04-17
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---
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## Summary
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Docker Save 是 Docker 命令行工具的导出命令，用于将一个或多个镜像打包成 tar 归档文件，便于离线传输和备份。
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## Definition
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将 Docker 镜像导出为 tar 格式归档文件的命令。
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## Command Syntax
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```bash
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docker save -o <output_file.tar> <image_name>[:<tag>]
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```
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## Examples
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```bash
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# 导出单个镜像
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docker save -o xiaoya.tar xiaoyaliu/alist
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# 导出多个镜像
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docker save -o images.tar image1:image2
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```
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## Use Cases
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- 离线环境镜像迁移
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- 镜像备份和归档
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- 跨网络隔离环境传输
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## Related Concepts
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- [[Docker-Image]]：被导出的镜像对象
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- [[Docker-Load]]：对应的导入命令
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## Connections
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- [[Docker-Image]] ← 导出为 ← [[Docker-Save]]
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