title: How to exit the current user with Google Cloud SDK Shell?
body: <p>I refer to this <a href="https://cloud.google.com/natural-language/docs/reference/libraries?refresh=1#client-libraries-usage-python" rel="nofollow noreferrer">page</a> to operate.</p>
  
  <p>I have a account, and I run the following commands using the Google Cloud SDK Shell, but the json file is my friend's account. I do not have permission.</p>
  
  <p>So I want to exit the current user,and login with my friend's account, but now how to exit the current user and change an account to login?</p>
  
  <blockquote>
    <p>Welcome to the Google Cloud SDK! Run "gcloud -h" to get the list of
    available commands.</p>
    
    <p>C:\Program Files (x86)\Google\Cloud SDK>gcloud iam service-accounts
    create XXX ERROR: (gcloud.iam.service-accounts.create) The required
    property [project] is not currently set. You may set it for your
    current workspace by running:</p>
    
    <p>$ gcloud config set project VALUE</p>
    
    <p>or it can be set temporarily by the environment variable
    [CLOUDSDK_CORE_PROJECT]</p>
    
    <p>C:\Program Files (x86)\Google\Cloud SDK>gcloud projects
    add-iam-policy-binding dynamic-return-XXX --member
    "serviceAccount:XXX@dynamic-return-XXX.iam.gserviceaccount.com" --role
    "roles/owner" ERROR: (gcloud.projects.add-iam-policy-binding) User
    [wallace.convict.439759406@gmail.com] does not have permission to
    access project [dynamic-return-XXX:getIamPolicy] (or it may not
    exist): The caller does not have permission</p>
    
    <p>C:\Program Files (x86)\Google\Cloud SDK></p>
  </blockquote>