This is a grump.

Dear X applications (or any application on any window system): youshould never, ever kill or otherwise force-terminate the screenlocker. In particular, you cannot assume that just because you havebeen run that the user is sitting there in front of the screen and wantsit unlocked. There are any number of ways that you can start up whenthe user is not present, and unlocking the screen in this situation caneasily make things go horribly wrong.

For one example, perhaps

One of my sysadmin rules of thumb for deciding what to automate in scriptsand programs is this: automate where you can make mistakes. In particular,automate where you are specifying redundant information.

This will make more sense with an example, so let's talk aboutconfiguring iSCSI targets. We use static target configuration, whichmeans that you tell the system a target name and the IP address that itcan be found on; each iSCSI server has two IPs, so we configure each ofits targets twice, once