Duplicate files will cause halting the script execution (User will not see the popup and Script wait for user responses)

[vijaysimhagk]

started running the script early this morning. 8 hours later it was still running. The script does not take
into account if there are duplicate files in a zip file. So it seems to hanging. The line where it is hanging is

            unzip -d /tmp/log4j_for_extract/ $war_file > /dev/null

This should be

            unzip -o -d /tmp/log4j_for_extract/ $war_file > /dev/null

So that duplicate files in the archive will overwrite by default instead of hanging at a user prompt for input, since stdout is redirected to /dev/null it is difficult to tell if it is hanging because it is waiting for a prompt answer or actually running.