As long as a 64 bit CPU is supposed to execute 32 bit programs, it is sometimes hard to know which one do I have installed on my device.
There are programs that require this knowledge, like the Xposed Framework installer.
What could be considered the proper method, whether be it ADB, command-line or software?
I used to do on desktop Linux:
sudo uname -a
Maybe there is some equivalent for Android?
Some programs that should inform about this are not clear enoguh for me. This is a example of some AIDA64 report. Even when it shows 32 bit, is this info about the operating system? I would say it is just about the hardware:
(Click image to enlarge; my AIDA64 is in Spanish)
Question extended to this other