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# Docker export Command [Docker Command Manual](#) * * * The `docker export` command is used to export the file system of a Docker container as a tar archive file. The `docker export` command is primarily used for backing up or migrating a container's file system, without including all the layers and metadata of the Docker image. ### Syntax docker export CONTAINER OPTIONS Description: * **`-o, --output`**: Write to a file, instead of STDOUT. Export container file system: docker export my_container Export the file system of the container named my_container to standard output. Save the exported file as a tar file: docker export my_container > my_container_backup.tar Export the file system of container my_container and save it to the my_container_backup.tar file. Save the exported file using the --output option: sh docker export -o my_container_backup.tar my_container Export the file system of container my_container and save it to the my_container_backup.tar file. ### Examples Start a container: docker run -d --name my_container ubuntu bash -c "echo hello > /hello.txt && sleep 3600" Export the container's file system: docker export my_container > my_container_backup.tar View the contents of the exported tar file: tar -tf my_container_backup.tar Output: hello.txt Import the file system into a new container: cat my_container_backup.tar | docker import - my_new_image ### Notes * `docker export` only exports the container's file system, not including the Docker image's layers, metadata, or runtime information. * If the container is running, the exported file system will be a snapshot of the container's current state. * The exported tar file may be large, depending on the size of the container's file system. The `docker export` command is a useful tool for exporting a container's file system as a tar archive file. This is very useful for backing up, migrating, and analyzing a container's file system. By using the `--output` option, users can save the exported content to a specified file, making it easy to manage and use. * * Docker Command Manual](#)