crontab

crontab

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• 网络设置计时器；排程；文件条目格式

例句

A crontab line contains two main sections, a time schedule section followed by a command section.

一个crontab行包括两个主要部分，时间表部分和后面的命令部分。

If many flows have this requirement, maintenance of the crontab becomes burdensome.

如果很多流具有这个需求，crontab的维护任务就会变得繁重起来。

You can use Windows Scheduled Tasks in the Windows OS or crontab in the Linux OS to invoke the main program of Automatic-BT.

您可以使用Windows操作系统中的Windows任务计划或Linux操作系统中的crontab来调用Automatic-BT的主程序。

Setting up crontab entries requires a string with escaped shell metacharacters, so it is best done with simple commands and parameters.

设置crontab条目需要一个包含转义的shell元字符的字符串，所以适合于简单的命令和参数。

Note also that the crontab can include shell variables assignments that will be set before the commands are run.

还要注意，crontab可以包含shell变量赋值，这些赋值会在运行命令之前执行。

You can use this script from your crontab list for regular processing or run as required from the command line.

您从crontab列表使用此脚本进行常规的处理，也可以根据需要从命令行运行该脚本。

These system crontabs have one additional field between the fifth time entry (day) and the command.

在这些系统crontab中，在第五个时间字段（星期）和命令之间增加了一个字段。

The crontab invokes the default editor, as specified using the VISUAL or EDITOR shell environment variables.

crontab调用默认编辑器。默认编辑器使用shell环境变量VISUAL或EDITOR来指定。

On the offsite server invoke the crontab program with the edit (-e) option.

在离线服务器上使用编辑选项（-e）调用crontab程序。

For more information on the crontab command, please refer to the crontab command reference.

有关crontab命令更多的内容，请参阅crontabcommandreference。

With the crontab from Listing 4 in place, the extra server will come online during peak periods and turn off when the site is less busy.

通过使用清单4的crontab，附加服务器也会在高峰时间打开，然后在空闲时间关闭。

You enter the code in Listing 4 in a user's crontab on a machine outside the virtual environment.

您需要在虚拟环境以外的一个主机上的用户crontab中输入清单4的代码。

Some dot files are rich enough to warrant a separate man page, such as crontab.

有些点文件内容丰富，足以占用一个单独的手册页，比如crontab。

If they do this, they might trojan crontab in order to hide jobs that rotate, modify, or check on the status of the illicit activity.

如果他们做到这一点，他们可能会以木马隐藏的crontab作业，旋转，修改，或者检查非法活动的状态。

Place this line in your crontab file, and save the file.

把这一行放在crontab文件中并保存文件。

See the man page for crontab(5) for details on additional ways to specify times.

关于指定时间的其他方式的细节，参见crontab（5）的手册页。

Refer to our previous tip Job scheduling with cron and at to learn how to set your own crontab for your new alarm clock.

请参考前一篇技巧文章Jobschedulingwithcronandat，学习如何针对新的闹钟程序设置crontab。

Fixed a bug in crontab "day of week" handling in locales where a week starts from Monday. ( issue 8401)

解决了locales中“dayofweek”crontab的一个bug，其一周从周一开始（issue8401）。

At cal crontab date sleep time uptime

日期与时间编程