SysAdmin

Renaming directories is one of the most basic tasks for a Linux system administrator. This tutorial shows you how to rename directories using the terminal window.

The wait command helps control the execution of background processes. Learn how to use the wait command through hands-on examples in bash scripts.

The SSH protocol offers system administrators a way to establish a secure connection that will protect them against malicious cyber-attacks, such as password-sniffing. This article offers an overview of the function, terminology and use cases of SSH.

A pretty hostname is a high-level, free-dorm label used to identify a system in a network. This tutorial shows different ways you can set up a pretty hostname on a Linux system.

This step-by-step tutorial shows how you can install PuTTY on your macOS. PuTTY is a popular, open-source Telnet and SSH client, originally developed for Windows, and later ported to macOS.

Learn how you can use the Python package manager PIP to upgrade or downgrade TensorFlow automatically.

DNS (Domain Name System) records are used to store information about domains such as IP addresses, aliases, and security certificates. Learn more about different types of DNS records in this tutorial.

PuTTY is an open-source session management client. Although it was originally developed for Windows, it is available on Linux, too. This tutorial shows how to install PuTTY on Ubuntu.

Linux offers multiple tools for data transfer to and from a server, the most popular being curl and wget. This tutorial will show you how to use the curl command, and provide you with an exhaustive list of the supported protocols and available options.

Git is the world's most popular version control system. This article showcases how Git works and explains each Git function in detail.