nixCraft Linux / UNIX Newsletter

How to display countdown timer in bash shell script running on Linux/Unix
How to install and use Monit on Ubuntu/Debian Linux server as process supervision tool
How to add ZIL write and L2ARC read cache SSD devices in FreeNAS

How to display countdown timer in bash shell script running on Linux/Unix

Posted: 24 Jun 2017 04:49 PM PDT

I want to display a countdown before purging cache from CDN network. Is there an existing command to show a conuntdown from 30..1 as 30,29,28,...1 on Linux or Unix bash shell script?

How to install and use Monit on Ubuntu/Debian Linux server as process supervision tool

Posted: 24 Jun 2017 12:11 PM PDT

How do I install and configure monit to restart services such as Nginx/Apache/OpenVPN server when failed on Debian or Ubuntu Linux?

How to add ZIL write and L2ARC read cache SSD devices in FreeNAS

Posted: 24 Jun 2017 03:27 AM PDT

How do I add the write cache called the ZIL and read cache called L2ARC to my my zroot volume? How do I extend my existing zroot volume with ZIL and L2ARC ssd disks of FreNSA server?