Omer Cakmak

Omer Cakmak

Linux Administrator

at · 149 articles published

Highly skilled at managing Debian, Ubuntu, CentOS, Oracle Linux, and Red Hat servers. Proficient in bash scripting, Ansible, and AWX central server management, he handles server operations on OpenStack, KVM, Proxmox, and VMware.

Areas of expertise

Articles by Omer Cakmak

Using Counter in Bash with Practical Examples

Using the + and – Counter Operators, Using the += and -= Counter Operators, Using the ++ and — Counter Operators in Bash

Steps to Install VSCode on Ubuntu 22.04 [6 Methods]

Step by Step instructions to install Visual Studio Code on Ubuntu 22.04 using 6 different methods

Install Visual Studio Code Rocky Linux 9 [Step-by-Step]

Step by step instructions to install Visual Studio Code on Rocky Linux 9. 4 different methods to install and setup Visual Studio Code

How to List Users in Linux (Complete Guide)

Learn how to list users in Linux using commands like getent, /etc/passwd, compgen, who, and id. This guide explains multiple practical methods to view all …

How to add user to sudoers or sudo group in Ubuntu

In this tutorial will answer all those questions and will also guide to add user to sudo group so that the user can perform tasks which otherwise would be

How to install certbot [Let's Encrypt] on Rocky Linux 9

Step by Step instructions to install and generate certs using Let's Encrypt (certbot) on Rocky Linux 9. Generate and deploy certs for Nginx and Apache server.

pkill -P $$ - Kill subprocess in Linux [SOLVED]

pkill -P $$ is used to match only child processes of the given parent where $$ is the process of the current process

Working with ulimit in Linux [Beginners Guide]

Complete ulimit tutorial to learn about modification of different system limits and configurations without reboot

Install WordPress on Rocky Linux 9 [Step-by-Step]

Step by Step instructions to install wordpress on Rocky Linux 9

Install Eclipse IDE on Rocky Linux 9 [Step-by-Step]

Step by step instructions to install eclipse IDE on Rocky Linux 9

Could not resolve host: mirrors.rockylinux.org [SOLVED]

3 possible solutions to Could not resolve host: mirrors.rockylinux.org and Failed to connect to mirrors.rockylinux.org port 443: Connection timed out

Install FFmpeg in Rocky Linux 9 [Step-by-Step]

Step by step instructions to install ffmpeg in Rocky Linux 9

How to install and setup ZFS in Rocky Linux 9

Install and Setup ZFS in Rocky Linux 9 with examples to create a ZFS Pool

Install Memcached on Rocky Linux 9 [Step-by-Step]

Step by Step instructions to install Memcached on Rocky Linux 9. 2 different methods to install using default package manager and downloading from official …

Install Maven in Rocky Linux 9 [Step-by-Step]

2 different methods to install latest maven package using system package manager or from downloading maven from official repository.