Author

Omer Cakmak

Omer Cakmak

Linux Administrator

at · 134 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

Author profile illustration for Omer Cakmak — technical writer at GoLinuxCloud

Articles by Omer Cakmak

linux

Install YARN on Linux and Windows

Step by Step instructions to install yarn on Linux and WIndows. Installation on Ubuntu (Debian based) and Rocky Linux (Red hat based) and Windows.

Omer Cakmak7 min read
linux

Restart Crontab in Linux (Cron Reload & Restart Commands)

Learn when and how to restart crontab in Linux. See cron restart and reload commands for Ubuntu, Debian, RHEL, CentOS—and when a restart is NOT required.

Omer Cakmak4 min read
linux

Install XFCE Desktop on Ubuntu (Minimal, Full & Server Guide)

Learn how to install XFCE on Ubuntu using multiple methods including minimal XFCE installation, full Xubuntu desktop setup, and GUI installation on Ubuntu Server. This guide also explains how to switch desktop …

Omer Cakmak9 min read
linux

How to count files in directory in Linux? [SOLVED]

When managing files and directories in Linux operating systems, there may be a need to know how many files are in a given directory. For example:

Omer Cakmak9 min read
linux

How to create user in Linux?

If you have not integrated Linux servers into a central user authentication such as LDAP/Active Directory, you will have to create local users many times.

Omer Cakmak6 min read
linux

Remove dot(.) in Linux Permissions the RIGHT way!

Step by step instructions to remove dot in Linux permission section for file and directory. What is the meaning of having dot (.) in the end of Linux permission field.

Omer Cakmak6 min read
linux

How to Mount USB Drive in Linux (Command Line Guide for Ubuntu, Debian, RHEL)

Learn how to mount a USB drive in Linux using command line tools. This step-by-step guide explains how to identify USB devices, install required filesystem packages, mount USB drives manually, verify mount points, …

Omer Cakmak12 min read
linux

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 users, logged-in users, normal users, system accounts, and users …

Omer Cakmak13 min read
cheatsheet

How to Use Screen in Linux [List, Attach, Detach, Close]

Learn how to use the screen command in Linux to manage persistent terminal sessions. Includes examples to list, attach, detach, rename, log, and close screen sessions with practical shortcuts.

Omer Cakmak7 min read
linux

zsh: command not found: pip – Fix with pip3 & PATH in 2 Minutes

We explore the different root cause for getting zsh: command not found: pip error in Linux and how to fix those errors.

Omer Cakmak3 min read
linux

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

Step by step instructions to install phpMyAdmin on Rocky Linux 9 using 2 different methods.

Omer Cakmak4 min read
linux

How to use du to sort files by size?

du stands for disk usage which is one of the most used tool in Unix/Linux to estimate the file space usage. Here are some commonly used command arguments and

Omer Cakmak9 min read
cheatsheet

rmmod Command Examples in Linux

The rmmod command in Linux is used to remove a module from the linux kernel.

Omer Cakmak3 min read
cheatsheet

15+ Tips to PROPERLY sort files in Linux [Cheat Sheet]

The simplest way to sort files in Linux is to sort them alphabetically by name. This is done using the ls command with the -l option and piping it to the sort

Omer Cakmak8 min read
linux

How to Create Dropdown List in SoftMaker PlanMaker

In this tutorial we will be covering different methods to create dropdown list in SoftMaker PlanMaker. Now this article assumes that you already have

Omer Cakmak3 min read
system-administration

What is SSH Multiplexing and How to use Securely?

This tutorial covers SSH Multiplexing, explaining its benefits, setup, and use cases. We'll guide you through configuration steps, security best practices, and optimization techniques to enhance your SSH operations …

Omer Cakmak11 min read
linux

SCP vs RSYNC - Which one to use in Production?

This tutorial covers the basics and differences between SCP and Rsync, when to use each, their performance, security considerations, practical examples, and tips for efficient file transfers, helping you choose the right …

Omer Cakmak8 min read
linux

How to Install Nvidia Drivers on Ubuntu

This tutorial guides you through step by step instructions to install Nvidia drivers on Ubuntu, covering different methods like GUI, command line, and PPA repository. It includes compatibility checks, manual …

Omer Cakmak9 min read
linux

Recover Lost Files PartedMagic

Parted Magic is a commercial Slackware-based Linux distribution that comes with partitioning and data recovery tools. The distribution's name is derived from

Omer Cakmak7 min read
linux

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

Omer Cakmak14 min read
linux

PROPERLY recover lost files Linux

Step by Step instructions to recover lost files in Linux using photrec with screenshots

Omer Cakmak2 min read
linux

Linux File Descriptors [In-Depth Tutorial]

In this tutorial we will explain everything you need to know about Linux File Descriptors.

Omer Cakmak15 min read
linux

How to Install XeroLinux?

Step by Step instructions to install xerolinux with screenshots.

Omer Cakmak4 min read
linux

Install OpenTracker on Debian [Step-by-Step]

Looking to install OpenTracker on Debian? This step-by-step guide provides instructions on how to set up this real-time GPS tracking software on one of the most popular Linux distributions.

Omer Cakmak5 min read
linux

Install GameMaker Studio on Linux

GameMaker Studio is a popular game development tool used by many indie game developers around the world. It provides an easy-to-use interface and powerful

Omer Cakmak4 min read
linux

How to install PostgreSQL Rocky Linux? [SOLVED]

Step by step instructions to install postgresql from default repository or from online archive. You can download and install custom postgresql version from their official repositories

Omer Cakmak4 min read
linux

Increase sound more than 100 in Ubuntu? [SOLVED]

VLC and some media players allow you to increase the volume up to 200%. In the operating system, it is possible to increase the volume as the system allows.

Omer Cakmak3 min read
linux

How to enable UTF-8 in Linux?

If you are working on Linux operating system, you should use these converters. If you have received a warning/error regarding UTF-8, read this post. In this

Omer Cakmak3 min read
linux

PROPERLY disable IPv6 in Rocky Linux

IPv6(128-bit address) is a protocol that will replace the IPv4(32-bit address) network protocol and provide a much larger network address space usage. It is

Omer Cakmak5 min read
linux

How to run memtest on Ubuntu?

Memtester is a memory testing program designed to stress test and test the system's random access memory for errors by writing test patterns to most memory

Omer Cakmak5 min read