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I have an embedded device running busybox. The device has crond installed and running, but has no atd daemon. I need to schedule task to run at a given time (just once, not periodically). I know, that the “kosher” way is to use at command, but I unfortunately don’t have one. So, how can I use cron as a workaround?
You can set up the cron to run your script, and when it succeeds, the script should just comment out or remove the cron entry.