I can not create a device with avdmanager command line:
$ Android/Sdk/tools/bin/avdmanager create avd --name Nexus6P --tag 11 --package \'system-images;andro
The solution from @Gregriggins36 works. Here the detailed solution I use on Linux (Fedora 27)
List the device definitions available:
~/Android/Sdk/tools/bin/avdmanager list
...
---------
id: 11 or "Nexus 6P"
Name: Nexus 6P
OEM : Google
---------
...
create a virtual device based on device definition "Nexus 6P"
~/Android/Sdk/tools/bin/avdmanager create avd --force --name Nexus6P --abi google_apis/x86_64 --package 'system-images;android-23;google_apis;x86_64' --device "Nexus 6P"
list virtual devices available
~/Android/Sdk/tools/bin/avdmanager list avd
Name: Nexus6P
Device: Nexus 6P (Google)
Path: /home/guillaume/.android/avd/Nexus6P.avd
Target: Google APIs (Google Inc.)
Based on: Android 6.0 (Marshmallow) Tag/ABI: google_apis/x86_64
start the emulation of our new virtual device
~/Android/Sdk/tools/emulator -avd Nexus6P -skin 1440x2560