Q:

Unable to get the SHA-1 key through terminal

I tried to get my SHA-1 key by using the terminal but I don't know what problem is there, can anyone help me with this? I know how to get sha-1 key in android studio by signing report, but I want to generate in terminal.
Here is what I got when I run the command, I tried this answer but got nothing: how to get sha1 of android app in Vs code

above is my cmd. It is saying that it is an illegal option.
I have my Java bin directory here C:\Program Files\Java\jdk-14.0.2\bin and  debug.keystore here: C:\Users\91819\.android

A:

Put a space between "C:\Users\91819\.android\debug.keystore" and -alias

