Tag: cron

Schedule Commands And Scripts In Linux With Zeit (GUI For Cron And At)

Zeit is a Qt GUI for cron and at, allowing you to schedule recurring or one time tasks. The application also allows setting an alarm and a timer.

Other features include the ability to add, edit and delete environment variables for crontab, as well as optional PolKit support for root actions.

Source: Schedule Commands And Scripts In Linux With Zeit (GUI For Cron And At) – Linux Uprising Blog

Beginners Guide to Cron Jobs and Crontab

In this guide, we will be diving into what is a cron job and crontab. We example what the cron is why you would want to use it. There is also a calculator you can use to generate a crontab entry.

Source: Beginners Guide to Cron Jobs and Crontab – Pi My Life Up

Link: Crontab Generator

Those of you that use Webmin already have something very similar to this in the System > Scheduled Cron Jobs tab, but for those who aren’t using Webmin, there’s this:

If you want to periodically perform a task (e.g. sending Emails, backing up database, doing regular maintenance, etc.) at specified times and dates, there are two ways to set scheduled tasks:

  • Method 1: Use our online cron job service that will save you a headache.
  • Method 2: Use Cron available in Unix/Linux systems.

If you go with method 2, the following generator can help you produce a crontab syntax that you can copy & paste to your crontab file (You can open the file by using command crontab –e). Below the generated crontab syntax, a list of run times will be displayed too. The predictions will help you ensure that you set the time and date right.

Link to full page:
Crontab Generator

Link: Cron Jobs for Beginners

Cron Jobs are used for scheduling tasks to run on the server. They’re most commonly used for automating system maintenance or administration. However, they are also relevant to web application development. There are many situations when a web application may need certain tasks to run periodically. Today we are going to explore the fundamentals of Cron Jobs.

Full article here:
Cron Jobs for Beginners (Project: Fenix)

Link: 4 Useful Cron Alternatives For Linux

For those who are familiar with the Unix system, you will also be familiar with the cron application that allows you to schedule and automate tasks to run on their own. We even have tutorials that show you how to get started with cron and crontabs. However, cron is not perfect, as it requires your system to be running 24 hours a day. If you have a habit of turning off your computer at night, and a cron job is scheduled in the sleeping hours, the task won’t be executed. Luckily, there are several cron alternatives that can do a better job than cron. Let’s check them out.

Full article here:
4 Useful Cron Alternatives For Linux (Make Tech Easier)

Link: Edit your crontab file with crontab -e

Linux crontab FAQ: How do I edit my Unix/Linux crontab file?

I was working with an experienced Linux sysadmin a few days ago, and when we needed to make a change to the root user crontab file, I was really surprised to watch him cd to the root user’s cron folder, make changes to the file, then do a kill -HUP on the crontab process.

Thinking he knew something I didn’t know, I asked him why he did all of that work instead of just entering this:

crontab -e

Full article here:
Edit your crontab file with crontab -e (Alvin Alexander)

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