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Alan Kay's answer to “Did the ENIAC have a BIOS”?

Article URL: https://www.quora.com/Did-the-ENIAC-have-a-BIOS/answer/Alan-Kay-11 Comments URL: https://news.ycombinator.com/item?id=49870070 Points: 144 # Comments: 42

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Cron jobs: the tiny line that runs half your backend

Every backend has a few jobs nobody looks at. The nightly backup. The 9 AM report. The script that deletes old files. Each one is a single line of cron. They work fine for months.

  • Cron jobs are background code lines on Unix machines performing backups, reports, and deletions.
  • Cron job syntax includes minute, hour, day of month, month, day of week, and command.
  • Misunderstanding cron's range and interval syntax can lead to incorrect scheduling.

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