摘要：
CronHowto 目录IntroductionUsing CronCrontab SectionsCrontab OptionsEnable User Level CronFurther ConsiderationsTroubleshooting and Common ProblemsAdvanced CrontabGUI ApplicationsTipsCrontab ExampleHow Anacron is ArrangedCron Jobs AlternativesIntroductionCron is a system daemon used to execute desired 阅读全文
