plan to make a script with time range as input values

19:22:41 (1)system@xxxxx> select * from table (dbms_workload_repository.ash_global_report_html( 4281370344,1,timestamp'2016-05-05 13:50:00',timestamp'2016-05-05 14:05:00') );

open in browser:
add for mac os x

host open %SQLPATH%\tmp\output_&_connect_identifier..html

add for linux:

host firefox %SQLPATH%\tmp\output_&_connect_identifier..html --linux