-b     Enable total bandwidth consumption. To achieve faster parsing, do not enable this flag.  This  has
       been disabled by default.

-f input-file
       Path to input log file.

-s     Enable  HTTP  response status codes report. To avoid overhead while parsing, this feature has been
       disabled by default.

-e     Exclude an IP from being counted under the HOST module.

-a     Enable a list of User-Agents for the selected host.