Given the following scripts， what output would be generated？（）

Given the following scripts， both found in /usr/local/bin， what would the output be when executing /usr/local/bin/script1？（）

While installing an application， the administrator is instructed to perform two final tasks prior to starting the application：  
1.Set the ownership of a file named ’control_file’ to be owned by the user ’database’ and the group ’appsrvr’.  
2.Change the permissions of ’control_file’ to 0766.  
After these two tasks have been completed， what will the file permissions look like when ’ls -l control_file’ is executed？（）