adb shell command to check the apk is debug or release signed?

Question

How to check if apk is debug or release signed?
Is there any direct adb command to verify apk signature?

Tried the following dumpsys and aapt commands, but I am not able to find the exact flag

adb shell dumpsys package <package name>
aapt dump badging <apk file>

How to find out the given apk is debug or release signed? How to know which builds (user, userdebug or eng) we can install this apk?

Answer 1

If you want to check whether the apk is debuggable use the below aapt command.

aapt dump badging /path/to/apk | grep -c application-debuggable

Outputs 1: Debuggable Outputs 0: Not Debuggable.

Answer 2

i've tried a lot of stuff and came upon the following solution:

adb shell dumpsys package <package name> | findstr flags

if the build is debuggable, the "flags" line will have "DEBUGGABLE" parameter present. If it's not there, the build is not debug