How to push a file from computer to /data/.../databases/ using adb command?

Issue

Below command is to pull a file:

adb -d shell "run-as com.myapp cat /data/data/com.myapp/databases/file.db" > file.db

But how to push it back like Android Studio does via Device File Explorer?

Solution

There is no simple command for uploading the file. What Android Studio does when uploading a file using Device File Explorer is this:

1. Upload the file via adb push to /data/local/tmp/<random file name>
2. Execute adb shell run-as com.myapp sh -c 'cp /data/local/tmp/<random file name> /data/data/com.myapp/<path>/<final file-name>'
3. Delete the temp file via adb shell rm /data/local/tmp/<random file name>
4. Get the updated view for Device File Explorer using adb shell run-as com.myapp sh -c 'ls -al /data/data/com.myapp/<path>/'

I discovered this by capturing the adb traffic on TCP port 5027 using Wireshark. An interesting detail is that each command executed using adb shell command uses the form <command-to-be executed in adb shell> || echo ERR-ERR-ERR-ERR

Answered By - Robert