The command adb shell sh /storage/emulated/0/Android/data/moe.shizuku.privileged.api/start.sh is used to manually start the Shizuku service on an Android device using a computer. Shizuku is a tool that allows apps to use system-level APIs with higher permissions (similar to root) without actually requiring you to root your phone. Command Breakdown
Copy and paste the following line into your computer's terminal or command prompt:
adb shell "echo '#!/system/bin/sh\necho linking...' > /storage/emulated/0/android/data/moeshizukuprivilegedapi/start.sh"
should show a "running" status with an "exit with 0" code in the terminal "Operation not permitted"