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May 12, 2023 at 0:04 answer added WGroleau timeline score: 0
May 11, 2023 at 23:42 vote accept hbquikcomjamesl
May 11, 2023 at 23:41 answer added hbquikcomjamesl timeline score: 0
May 10, 2023 at 18:02 history edited hbquikcomjamesl CC BY-SA 4.0
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May 10, 2023 at 17:35 history edited hbquikcomjamesl CC BY-SA 4.0
added 961 characters in body
May 9, 2023 at 7:16 answer added Graham Miln timeline score: 3
May 8, 2023 at 21:41 comment added hbquikcomjamesl I've just added a reverse-engineered version of my shell script. Along with noting the last two pieces of the puzzle.
May 8, 2023 at 21:40 history edited hbquikcomjamesl CC BY-SA 4.0
Added reverse-engineered version of my own shell script.
May 8, 2023 at 17:14 comment added hbquikcomjamesl And looking at the Automator docs, I'm not sure if that's even relevant, even though it apparently can schedule things as Calendar alarms. And no, I don't want to involve Time Machine. Looking at launchd.info now. Hmm. "launchd differentiates between agents and daemons. The main difference is that an agent is run on behalf of the logged in user while a daemon runs on behalf of the root user or any user you specify with the UserName key."
May 8, 2023 at 16:58 comment added hbquikcomjamesl I may not be able to access the original shell script, or the original crontab entry that tripped it: the Linux box that was formerly the backup controller appears to have crapped out completely, and won't even power up.
May 6, 2023 at 3:11 comment added Marc Wilson And you can't use the same shell script now for some reason?
May 6, 2023 at 1:47 comment added IconDaemon You could use Time Machine on the Mini to backup just the specific directories to multiple rotating external drives. In System Preferences > Time Machine > Options ... use the "Exclude items" logic to set the directories you want backed-up, then uncheck System Preferences > Time Machine > Back Up Automatically. Executing the Terminal command tmutil startbackup will then, well, start a backup. Find a way to schedule the tmutil command, and Bob's your Uncle.
May 6, 2023 at 0:10 history edited hbquikcomjamesl CC BY-SA 4.0
All the gory details, as requested.
May 5, 2023 at 23:36 comment added Allan Can you edit the question with some details like what this “automation” looks like? Is it on a schedule, an event, or something else? Are these USB drives (and their mount points) going to be static? What did the Linux process look like?
May 5, 2023 at 23:30 history asked hbquikcomjamesl CC BY-SA 4.0