linux下at的使用

如果你使用at或者atq等命令时,通常会遇到 You do not have permission to use at. 的提示。如果不小心的人还会以为是用户权限问题,其实是靠 /etc/at.allow 和 /etc/at.deny 这两个文件控制那些用户可以使用和不能使用。如果修改过 at 相关文件的属性,可能会出现 Cannot change to /var/spool/cron/atjobs: Permission denied 的错误,如果不能恢复可以删除后重装 at 。

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