Originally Posted by kholostoi

This is my solution:

---------file : awk_tets --------------
BEGIN { flag = 0}
/^<bag name="mybag2"/ { flag = 1}
/^<bag name="mybag3"/ { flag = 0}
{ if (flag == 0) { print; } }
---------------------------------------

in command line: $ awk -f awk_test your_data_file > result

Let's try it