Starting Emulator Command Line

Syntax :
emulator -avd avd_name [ {-option [value]} … ]

atau

emulator @avd_name [ {-option [value]} … ]

Path :
$ /../Android/sdk/emulator/emulator -avd Nexus_5X_API_23 -netdelay none -netspeed full

Run :
emulator -list-avds


Source :
Source : https://developer.android.com/studio/run/emulator-commandline