Linux commands supported in Android

1. Start emulator (simulator)

Enter emulator in DOS and press enter to start emulator, provided that you add the tools directory of the android SDK to the environment variable; otherwise, you must first enter the tools directory of the android SDK, then enter the emulator command. 2. Check the Linux commands supported by Android. After the simulator is started, enter the ADB shell carriage return, the CD system carriage return, the CD bin carriage return, and the LS carriage return in DOS, you can view the Linux commands supported by the Android system. Operation 3. If you are using an integrated development environment of Eclipse, select the ddms option in the upper right corner and select "file Explorer ", click "system" and click "bin". You can also see the Linux commands supported by Android. Why is there no CD command in it? It can run the CD command clearly, and anyone who knows it can tell me.