Cron Job is the job done by system cron every day or like timed, for a specific set of operations and processes like cleaning up, maintenance and more. So If you have some process like cleaning up of logs

1. update all your system software to the latest version available $ sudo yum update 2. Verify if cronie package is installed $ sudo rpm -q cronie 3. Install cronie package $ sudo yum install cronie 4.

最近被問到如何建立固定排程執行特定行為，一時答不上來該如何處理，所以實作之後紀錄了這篇內容。 以下以每天早上十點固定寄出電子報為例。 安裝whenever 首先安裝whenever gem 'whenever', require: false 接著我們透過以下的指令建立config/schedule.rb wheneverize .

Hello world! Hier mal ein kurzer Wasserstand zum Projekt "Raspberry Litecoin Mining": Seit vorgestern (dem 12 Stunden Experiment - bei dem 0.00001496 LTC rumkamen, habe ich nun insgesamt 0.00002023