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I recently visited a relative who is studying in the natural sciences and who, surprisingly, is even less capable in certain technical aspects of computing than I am. He was trying to create, on his Mac, a script that would run as a cron job, and asked me for some pointers. Though I know the basics about cron and was willing to pitch in, I wasn't so sure about the script: you see, calling my bash skills rudimentary would be high praise. Nonetheless I decided that, with some web searching, I might be able to assist with that, too. Sure enough, I was able to find just the sort of information that would help us create a script that would tar and compress, then encrypt, a target directory. Details--shamelessly lifted from various locales on the web--are included below.
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