Tags » Cron

Fun with DreamHost: Fossil

I’ve mentioned before that Cheshire likes to use Fossil for version control. Most of our need is for internal use only, but occasionally it is handy to have a server under our control that hosts a repository. 2,154 more words

Tricks

How to use Crontab to execute tasks in Linux?

This article shows you how to execute a certain task at specific intervals in Linux using cron job.

Crontab can be used to schedule a job that runs on a certain interval. 458 more words

Linux

Cron Expressions

Cron expressions are used to configure instances of CronTrigger, a subclass of org.quartz.Trigger. Cron expressions are based on the unix tool cron. We will use the cron expressions to build cron trigger.  785 more words

Cron

Whenever : Cron tab : Environment selection

For whenever gem Default Rails environment is production. However, you sometime would like to set environment manually for testing purposes.

If you try

$ whenever -h
Usage: whenever 
 -s, --set  Example: --set 'environment=staging&path=/my/sweet/path' 78 more words
Ruby On Rails

Instant Offset Appeals to Corsham Print

Corsham Print, the 15-year-old Wiltshire-based print and design business, has announced an investment in the very latest LED-UV technology as it upgrades its Ryobi B3-format offset press to an… 735 more words

Print

Spring Cron

1. 简介

Spring提供的轻量级调度框架中,任务的调度通过Trigger接口来实现。Trigger接口的一种实现便是基于CRON表达式的。 但是这里的CRON表达式与Linux系列操作系统中crobjob的表达式不一样,需要特别注意。

在使用注解进行调度的时候,一种写法如下:

@Schedule (cron="cron expression")
public void doEtlJob(){
...
}

其中被注解的方法不能有任何返回值(也就是必须为void)和方法参数。

2. 表达式格式

不同于Linux中的cron表达式(5位或者6位),Spring的表达式格式与QuartZ的格式类似,具体如下:
cron表达式由6位或者7位空白符号隔开的字符组成,各位的含义如下:
1. 秒数
2. 分钟
3. 小时
4. 月份中的日期 15 more words

Cron

Automate system tasks using cron on CentOS 7

In this tutorial we are going to show you how to automate system tasks on a Linux VPS running CentOS 7 as an operating system. First of all, connect to your Linux VPS via SSH and update all your system Continue reading… 6 more words