anchor.diff:  [source,shell]
   --------------------------------------------------
   % curl 'localhost:9200/_cat/indices/twi*?v'
  -health index    pri rep docs docs/del size/pri size/total
  -green  twitter    2   0  627        7      2mb        2mb
  -green  twitter2   2   0  628        0    2.5mb      2.5mb
  +health index    pri rep docs.count docs.deleted store.size pri.store.size
  +green  twitter    5   1      11434            0       64mb           32mb
  +green  twitter2   2   0       2030            0      5.8mb          5.8mb
   --------------------------------------------------
   
   We can tell quickly how many shards make up an index, the number of
   docs, deleted docs, primary store size, and total store size (all
   shards including replicas).
  +
  +[float]
  +[[pri-flag]]
  +=== Primaries
  +
  +The index stats by default will show them for all of an index's
  +shards, including replicas.  A `pri` flag can be supplied to enable
  +the view of relevant stats in the context of only the primaries.
   
   [float]
   [[examples]]
  
positive.code: [source,shell]
  --------------------------------------------------
  % curl 'localhost:9200/_cat/indices?bytes=b' | sort -rnk7
  green  twitter      2 0 627 7 2123797 2123797
  green  wiki         2 0  59 0  575904  575904
  yellow foo          5 1   4 0   17447   17447
  --------------------------------------------------
  
negative.code: [source,shell]
  --------------------------------------------------
  % curl localhost:9200/_cat/indices | grep ^yell
  yellow wiki     2 1  6401 1115 151.4mb 151.4mb
  yellow twitter  5 1 11434    0    32mb    32mb
  --------------------------------------------------
  
  What's my largest index by disk usage not including replicas?
  