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Stop output from Android emulator in terminal so next command can be executed

The below script is used to open an Android emulator and install an react native app on it. I would like to hide the output of the emulator in the terminal so the next command can be read instead of the output of the emulator. How can I do that?

read -p "Which Android emulator name (i.e. Pixel_7_Pro_API_34)?: " device

emulator -avd $device &
adb wait-for-device shell 'while [[ -z $(getprop sys.boot_completed) ]]; do sleep 1; done; input keyevent 82'
npx react-native run-android
Solution

  • Mike!

    this can be achieved by redirecting the output of the command to /dev/null by using:

    emulator -avd $device &> /dev/null

    explanation: 1> /dev/null redirects stdout to /dev/null and 2> /dev/null redirects stderr to /dev/null. using &> /dev/null redirects both. 1 is stdout. 2 is stderr.

    PS: you can also use 2>& 1 to to redirect stderr to stdout.