anchor.diff:  
       ```
       for image in $(ls /var/vcap/data/grootfs/store/unprivileged/meta/dependencies/image\:*.json); \
  -    do cat $image | python -c 'import json,sys;obj=json.load(sys.stdin); \
  -    print "\n".join(obj)' ; done | sort -u \
  +    do cat $image | python3 -c 'import json,sys;obj=json.load(sys.stdin); \
  +    print("\n".join(obj))' ; done | sort -u \
       | xargs -I{} cat /var/vcap/data/grootfs/store/unprivileged/meta/volume-{} \
       | cut -d : -f 2 | cut -d} -f1 \
       | awk '{sum += $1} END {print sum}'
  
positive.code: 
  This topic describes how to analyze GrootFS disk space usage in <%= vars.product_full %>.
  
  You run the commands in this topic on any BOSH-deployed VM that hosts the Garden job in a <%= vars.product_short %> deployment.
  
  <p class="note"><strong>Note:</strong> This topic provides different commands 
  depending on whether you are using privileged or unprivileged containers in your deployment. 
  
negative.code: 
      ```
      for image in $(ls /var/vcap/data/grootfs/store/privileged/meta/dependencies/image\:*.json); \
      do cat $image | python3 -c 'import json,sys;obj=json.load(sys.stdin); \
      print("\n".join(obj))' ; done | sort -u \
      | xargs -I{} cat /var/vcap/data/grootfs/store/privileged/meta/volume-{} \
      | cut -d : -f 2 | cut -d} -f1 \
      | awk '{sum += $1} END {print sum}'
      ```
  
  The commands above return the total number of bytes used by all active volumes on disk.
  
  _If `python3` is not installed, replace `python3` with `python` in the commands above._
  
  ### <a id="store"></a> Calculate GrootFS Store Disk Usage
  
  