Rudder

At least on Debian/Ubuntu/CentOS, cron jobs in /etc/cron.{daily,hourly,monthly,weekly} are run by run-parts, which ignores filenames that contain a ".". To be exact, it's a regex like "[a-zA-Z0-9_-]+"

       If  neither the --lsbsysinit option nor the --regex option is given then the names must consist entirely of
       ASCII upper- and lower-case letters, ASCII digits, ASCII underscores, and ASCII minus-hyphens.

But on SLES run-parts isn't used, so I guess this is allowable...

Ideally, we should be able to display a warning in the user interface if a dangerous name is used.