Schedule and manage recurring tasks with cron and systemd timers. Use when setting up cron jobs, writing systemd timer units, handling timezone-aware scheduling, monitoring failed jobs, implementing retry patterns, or debugging why a scheduled task didn't run.

使用 cron 和 systemd 定时器安排和管理重复任务。适用于设置 cron 作业、编写 systemd 定时器单元、处理时区感知调度、监控失败作业、实现重试机制或调试计划任务未执行的原因