Write the zkill script to detect and kill zombie processes. The script should run hourly under user bill

When a zombie is detected a log message is created. Use the logger command to create the log.

The message is: Detected zombie process: 234. User: bob. Successfully killed. (where the PID is inserted in place of 234, and the username is in place of bob). If the zombie was not successfully killed the message is: Detected zombie process: 235. User: Alice. Could not kill.