我的Linux系统开发环境普通用户编码从1000开始，为避免使用root用户误操作危害开发环境，一切文件均在普通用户环境下编辑，为有编辑权限，曾执行过 chown up /var/spool/cron/crontabs/root（不理解cron设计者为什么要去检查文件所属UID，即使当前已经是root权限），这个up就是我的用户名，up的UID=1000。

导读：cron 是一个调度守护进程，它以指定的时间间隔执行任务，这些任务称为 corn 作业，主要用于自动执行系统维护或管理任务。本文字数：3579 ...

导读：通过使用这个简单而强大的 Linux 命令行工具，来安排备份、文件清理以及其他任务。 本文字数：3406，阅读时长大约：5分钟在计算机上让任务 ...

If you're looking to automate tasks in Linux, cron is the tool to use. Find out how it's done here.

Continuing with his Linux 101 series, Jack Wallen introduces you to the basics of task scheduling with cron.

These jobs are stored in a crontab file, which contains the action to be taken and specifies when it should be executed. I will be using Ubuntu 18.04 for this article, which has cron installed by ...

Download "Beyond Cron: How to Know When You've Outgrown Cron Scheduling--and What to Do Next" USE OF INFORMATION: The information you provide may be used by Linux Journal and the content sponsor to ...

Security researchers have discovered a new remote access trojan (RAT) for Linux that keeps an almost invisible profile by hiding in tasks scheduled for execution on a non-existent day, February 31st.

You can do this using an SSH key distributed via Puppet and an IdentityFile entry in /root/.ssh/config. If you apply changes now, you should see that there is an entry in root's crontab, and every ten ...