If you prefer automatic updates, you can install the Google Cloud CLI using a snap package on
  Ubuntu systems. This package contains the gcloud CLI, gcloud alpha,
  gcloud beta, gsutil, docker-credential-gcloud, and
  bq commands only. It doesn't include kubectl or the App Engine
  extensions required to deploy an application using the gcloud CLI. If you need these
  components, install the Debian package instead.
- 
    If you have the old snap package, google-cloud-sdk, installed, remove it at the command line:snap remove google-cloud-sdk 
- 
    At the command line, install the gcloud CLI snap package:
    snap install google-cloud-cli --classic 
- 
    Optional. To add the gcloud CLI tools to your PATHand enable command completion in your Bash shell, source/path/to/gcloud/completion.bash.incin your profile.For Zsh shells, use /path/to/gcloud/completion.zsh.incinstead.
- 
    To initialize the gcloud CLI and get started, run
    gcloud init:gcloud init