Export the contents of Google Drive and import them into another Google Drive

from Transition from high school GSuite to personal GDrive Export the contents of Google Drive and import them into another Google Drive

Step 1. Export

• Export all files and transfer them to your personal account.
  • This is the simplest method.
• If you can use Google Takeout, it is recommended to use it for bulk export.
  • If you are unable to use it due to restrictions, you can download folders as zip files using the download feature in Google Drive.
• However, it can be troublesome because the files are converted to Office formats.
  • When exporting, documents and presentations will be in MS Office formats:
    • Docs -> Word
    • Spreadsheet -> Excel
    • Slides -> PowerPoint
    • Jamboard -> PDF
    • Live comments will be properly converted to Word format, and if you import them back into Google Docs, the comments will be restored.
    • If you no longer need the documents, it’s okay to have them in Office format since you can still open them. It’s a compromise.
  • Alternatively, although it requires manual work, you can share the files, create a copy with the “Make a copy” option in Docs, and choose the option to leave comments. This will create a copy of the file with ownership transferred.
  • It would be great if you could do this for entire folders, but it seems difficult.
• Also, files owned by others can be problematic.
  • For example, assignments submitted to teachers are usually owned by the teacher.
  • What happens when you export them?
    • They will be properly exported, so there shouldn’t be any issues.
• What about aliases?
  • They will be exported without any problems.
  • However, it seems that folders cannot be exported.
    • Instead, an HTML file with a link to that drive folder will be generated.
    • Well, that should be fine (blu3mo).

Step 2. Merge zips

• 
• The split zip files will be generated like this.
• You want to merge all of them.
  • https://stackoverflow.com/questions/60842075/combine-the-split-zip-files-downloading-from-google-drive shell

mkdir combined
unzip '*.zip' -d combined

- However, this method will result in Japanese files being lost.
- You may encounter an error like `checkdir error: cannot create combined/Projects/z_Past Projects/????????ա?????????? Illegal byte sequence`.
    - > This is an efficient answer, but on macOS 11.2.3, this unfortunately fails for zipped file names with some non-ASCII characters (like û). The solution of chanduthedev does work, when opening the resulting single ZIP file directly through the Finder. I couldn't find a way of having the unzip command to work. –
        - Isn't there a solution?
        - Ditto doesn't work either because it can only create one file.
    - It might work on Windows or Linux environments.
        - You can try it at the Columbia Computer Lab.
- Solution:
    - Use `unar Projects-20221207T211520Z-<number>.zip -o combined`.
        - This will extract the contents to the combined folder.
    - Repeat this for all numbers to merge the extracted contents.
        - Choose the Override option.