title: How can I use the az --query command to list all of the json fields but not their values? eg. az account list --query <something>
body: <p>I'm looking for an 'az' --query syntax that just lists the json fields and not their values.</p>
  
  <p>this will print a table:</p>
  
  <pre><code>az account list --query [*] -o --table
  
  Name    State  IsDefault  TenantId    CloudName
  
  ----    -----  ---------  --------    ---------
  
  bob     Enabled True       nnn        AzureCloud
  </code></pre>
  
  <p>but I don't want the values under the column names, I just want a list of the column names.</p>