how to run emulator in cmd code example

Example: start emulator from command line

@Get list of available emulators:
$ emulator -list-avds

Output:
2.7_QVGA_API_21
2.7_QVGA_API_22
Nexus_10_API_30
...

@Start emulator
$ emulator -avd Nexus_10_API_30