Android Stop Emulator from Command Line

Question

This question is identical to How to shut down Android emulator via command line   However  after attempting the suggested solution from the first answer adb emu kill has not proven successful for me   I am automating unit tests for an android application  My bash script runs on a headless machine  It creates an android device using android create avd and executes emulator with the -no-window attribute  It then compiles the test project  connects to the emulator using adb  installs the project and executes my tests  This all works fine   Now I need to terminate the emulator process  and just like the referenced post  I am only able to do this using kill -9    The Google tutorial Managing AVDs from the Command Line only mentions how to stop emulators within a GUI environment    Any help is appreciated

User · Answer

adb kill-server will kill all emulators and restart the server clean

User · Answer

To stop all running emulators we use this command   adb devices   grep emulator   cut -f1   while read line  do adb -s  line emu kill  done

User · Answer

Sometimes the command  adb -s emulator-5554 emu kill   did not work on my CI servers or desktops  for unknown reason   I think on Windows it s OK to kill the process of qemu  just like  Taskkill  IM qemu-system-x86 64 exe  F  T

User · Answer

I use this one-liner  broken into several lines for readability   adb devices    perl -nle  print  1 if  emulator-  d   device       xargs -t -l1 -i bash -c        echo auth   cat  HOME  emulator console auth token         echo kill        yes        telnet localhost

User · Answer

Why not just do  adb reboot bootloader

User · Answer

FOR MAC   Run   ps -ax   grep emulator   which gives you a wider result something like   6617            9 05 54  Users nav Library Android sdk emulator qemu darwin-x86 64 qemu-system-x86 64 -netdelay none -netspeed full -avd Nexus One API 29  6619            0 06 10  Users nav Library Android sdk emulator emulator64-crash-service -pipe com google AndroidEmulator CrashService 6617 -ppid 6617 -data-dir  tmp android-nav   6658            0 07 93  Users nav Library Android sdk emulator lib64 qt libexec QtWebEngineProcess --type renderer --disable-accelerated-video-decode --disable-gpu-memory-buffer-video-frames --disable-pepper-3d-image-chromium --enable-threaded-compositing --file-url-path-alias  gen  Users nav Library Android sdk emulator lib64 qt libexec gen --enable-features AllowContentInitiatedDataUrlNavigations --disable-features MacV2Sandbox MojoVideoCapture SurfaceSynchronization UseVideoCaptureApiForDevToolsSnapshots --disable-gpu-compositing --service-pipe-token 15570406721898250245 --lang en-US --webengine-schemes qrc sLV --num-raster-threads 4 --enable-main-frame-before-activation --service-request-channel-token 15570406721898250245 --renderer-client-id 2  6659            0 01 11  Users nav Library Android sdk emulator lib64 qt libexec QtWebEngineProcess --type renderer --disable-accelerated-video-decode --disable-gpu-memory-buffer-video-frames --disable-pepper-3d-image-chromium --enable-threaded-compositing --file-url-path-alias  gen  Users nav Library Android sdk emulator lib64 qt libexec gen --enable-features AllowContentInitiatedDataUrlNavigations --disable-features MacV2Sandbox MojoVideoCapture SurfaceSynchronization UseVideoCaptureApiForDevToolsSnapshots --disable-gpu-compositing --service-pipe-token --lang en-US --webengine-schemes qrc sLV --num-raster-threads 4 --enable-main-frame-before-activation --service-request-channel-token   --renderer-client-id 3 10030 ttys000    0 00 00 grep emulator   The first  left  column is the process ID  PID  that you are looking for   Find the first PID  in the above example  it s 6617    Force kill that process    kill -9 PID  In my case  the command is  kill -9 6617   Usually  killing the first process in enough to stop the emulator  but if that doesn t work  try killing other processes as well

User · Answer

If you don t want to have to know the serial name of your device for adb -s emulator-5554 emu kill  then you can just use adb -e emu kill to kill a single emulator  This won t kill anything if you have more than one emulator running at once  but it s useful for automation where you start and stop a single emulator for a test

User · Answer

The other answer didn t work for me  on Windows 7   But this worked   telnet localhost 5554 kill

User · Answer

To automate this  you can use any script or app that can send a string to a socket  I personally like nc  netcat  under cygwin  As I said before  I use it like this     echo kill   nc -w 2 localhost 5554    that means to send  kill  string to the port 5554 on localhost  and terminate netcat after 2 seconds

User · Answer

Use adb kill-server  It should helps  or  adb -s emulator-5554 emu kill  where emulator-5554 is the emulator name   For Ubuntu users I found a good command to stop all running emulators  Thanks to  uwe   adb devices   grep emulator   cut -f1   while read line  do adb -s  line emu kill  done

User · Answer

List of devices attached emulator-5584   host emulator-5580   host emulator-5576   host emulator-5572   host emulator-5568   host emulator-5564   host emulator-5560   host  C  Users Administrator adb -s emulator-5584 emu kill error  could not connect to TCP port 5584  cannot connect to 127 0 0 1 5584  No connection could be made because the target machine actively refused it   10061   NOTE  gui of emulator is not running but still it s showing  SOLUTION   adb kill-server   start emulator using   emulator exe -netdelay none -netspeed full -avd Nexus 5X API 19   I hope this will help you

User · Answer

I can close it with   adb shell reboot -p

User · Answer

None of the solutions worked for me  I had to go the telnet way including authentication   AUTH   cat   HOME  emulator console auth token    expect  lt  lt  EOF spawn telnet localhost 5554 expect  OK  send    auth  AUTH r  expect  OK  send    kill r  expect  OK  send    exit r  EOF   The full script can be obtained with a free license from https   github com kullo android-emulator-tools    Update  looks like this still does not reliably close the console and ADB ports  e g  5554 5555

[android] Android Stop Emulator from Command Line

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