Cron is a classic utility found on Linux and UNIX systems for running tasks at pre-determined times or intervals. These tasks are referred ... ... <看更多>

6 Answers 6 · To edit: crontab -e · Add this command line: 30 2 * * * /your/command. Crontab Format: MIN HOUR DOM MON DOW CMD. Format Meanings and ... ... <看更多>