I'm trying to compile jar to dex using D8 and linux terminal
D8 in sdk tools, look at screen.
I want to convert MySecretClass.jar to dex file. What commant I should to enter in terminal ubuntu.
D8 and MySecretClass.jar in the same dir
I tried everything to do it

The right command to Linux is:
java -jar d8.jar --release Secret.jarit will build
classes.dexfile in the same directory.