每隔5分钟重新启动CronTab无效

Question

I've put the command

*/5 * * * * root /sbin/shutdown -r now

Inside "sudo crontab -e" on a Raspberry Pi, which should reboot the raspberry pi every 5 minutes. But instead nothing happens.

I've looked in "/var/log/syslog" but all it says is

Sep 24 08:55:01 raspberrypi CRON[638]: (root) CMD (root /sbin/shutdown -r now)
Sep 24 08:55:01 raspberrypi CRON[634]: (CRON) info (No MTA installed, discarding output)

Hoping someone can help me! Thanks, Jake.

Answer 1

It's not a valid command, remove the "root".

Since you edited the root crontab (sudo crontab -e) , the command is already executed as a root.