tail -f /var/log/cron
Apr 17 18:23:01 xyz CROND[5843]: (root) CMDOUT (/bin/sh: line 0: cd: /home/wwwroot/default/jpsx/tortoise/Public: No such file or directory)
通過日志，能夠快速定位問題！
查看cron是否開啟！
# service crond status
Redirecting to /bin/systemctl status crond.service
● crond.service - Command Scheduler
Loaded: loaded (/usr/lib/systemd/system/crond.service; enabled; vendor preset: enabled)
Active: active (running) since 五 2020-04-17 18:12:47 CST; 12min ago
Main PID: 3814 (crond)
CGroup: /system.slice/crond.service
└─3814 /usr/sbin/crond -n
重啟
# service crond restart
Redirecting to /bin/systemctl restart crond.service