Every ops engineer schedules jobs; few can say which shell cron uses, where stdout lands, or why percent signs delete half a command. Those gaps are exactly what interviews test.
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Explain what actually happens when cron fires a job, and where its silent failures come from.
Every ops engineer schedules jobs; few can say which shell cron uses, where stdout lands, or why percent signs delete half a command. Those gaps are exactly what interviews test.
Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.
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