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I want to schedule a file to run using the at command, as described in this tutorial. I see that the at command supports the posix format -- but I don't see any mention of timestamps. Surely it is possible to schedule a job at a given timestamp.

$ man at | grep timestamp
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google epoch cron – PersianGulf Feb 22 '14 at 20:38
up vote 4 down vote accepted

From usr/share/doc/at/timespec, it doesn't look like it. But you can always use date to convert your timestamp, eg:

at "$(date --date=@1393419435 +'%D %T')"

date takes a timestamp in seconds, so don't forget to trim fractions of seconds if needed.

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