Linux 101: How to copy files and directories from the command line

Are you new to Linux? If so, you've probably found the command line can be a bit intimidating. Don't worry--it is for everyone at the beginning. That's why I'm here to guide you through the process, and today I'm going to show you how to copy files and folders from the command line.

Why would you need to copy files and folders this way? You might find yourself on a GUI-less Linux server and need to make a backup of a configuration file or copy a data directory.

Trust me, at some point you're going to need to be able to do this. Let's find out how.

How to install Headless Dropbox on Ubuntu Server

Dropbox can be termed as cloud-based file storage that makes your files available at any given time as long as you are connected to the internet. A local user accesses files by syncing to Dropbox. This aids to automatically update all removed and added files to your cloud-based storage. Most people are curious to know how the headless Dropbox can be installed on an Ubuntu Server. To learn more, follow the article below for detailed information, including screenshots of how the installation process is done.

Masterby Books by Michael W Lucas

Look what was delievered a few days ago! Can’t wait to skill up in both SUDO and PAM modules.

Michael W Lucas has written dozens of technical books on some of the most fascinating aspects of systems administration - I’ve read SSH Mastery book in the past and will someday try using FreeBSD for real just because Michael wrote so many books about this wonderful OS.

Cloud Native Patterns: a free ebook for developers

Building cloud native applications is a challenging undertaking, especially considering the rapid evolution of cloud native computing. But it’s also very liberating and rewarding. You can develop new patterns and practices where the limitations of hardware dependent models, geography, and size no longer exist. This approach to technology can make cloud application developers more agile and efficient, even as it reduces deployment costs and increases independence from cloud service providers.

I am TheeMahn

Let’s say you screw up your sources, Keysnatcher will fix them automatically. Nasup, dont have a NAS No Problemo I just told you use 0 memory. I can make it disable the service, I would not want it adding 6 seconds to your boot time. I have 20 Gigabit Networking and really understand. If you do have a NAS I want that picked up off the rip.

How to Install and Use the Etcher Tool on Ubuntu

In most cases, when we’re trying out a new OS, we choose to install it on the main machine, a virtual machine, or to boot alongside another operating system.
One of the upsides to using a Linux system is that we can boot using Live media, which makes it possible to test a specific distribution without altering the primary structure. Using bootable media such as USB drives, we can burn an iso image and boot from it or even use it to install the OS.

Although there are various ways to create bootable media—UnetBootIn, dd (Unix), Rufus, Disk Utility, etcetera, —having a simple and cross-platform tool can be massively advantageous.

What is the difference between Paramiko and Netmiko?

When it comes to networking, there is a wide range of perspectives, and one cannot master how to interact with all the devices in the real world. However, all networking devices share similar functionality that, when mastered, are automatable.

As mentioned in my other tutorials, programmers are lazy and always looking to improve efficiency—thus doing the least work —, and when it comes to automating network-related issues, many often jump at the chance.

In today’s quick guide, I’ll introduce you to automating SSH using two popular Python libraries: Paramiko and Netmiko. We will create simple python scripts using the two libraries to automate SSH and interact with network devices.

I choose this approach because a guide primarily focused on the differences between Paramiko and Netmiko would be too short—a simple table would suffice—and no-concrete. By taking this approach, you’ll be better able to experiment with them and see which does what and how.

How to Use Unison to Synchronize Files Between Servers

This tutorial will show you how to set up and use the Unison File synchronization tool on Debian systems. Using Unison, you can sync files between two different disks or directories in the same system or two other systems over the network.

How to detect the file system type of an unmounted device on Linux

If you want to store data on a new hard drive or a USB memory stick, what you first need to do is to create a "filesystem" on it. This step is also known as "formating" the drive or the USB stick. A filesystem determines in exactly what format data is organized, stored and accessed on a physical device. It is often necessary to know the type of filesystem created on a hard disk or a USB thumb drive even before mounting it. For example, you may need to explicitly specify filesystem type when mounting a disk device, or have to use a filesystem-specific mount command (e.g., mount.aufs, mount.ntfs).

2 Simple Steps to Set Up SSH Public Key Authentication on CentOS

This tutorial explains how to set up SSH public key authentication on a CentOS/RHEL desktop. There’re basically two ways of authenticating user login with OpenSSH server: password authentication and public key authentication. The latter is also known as passwordless SSH login because you don’t need to enter your password.

Linux 101: Renaming files and folders - TechRepublic

I'm going to help you learn a bit more about Linux. If you're new to the operating system, there are quite a few fundamental tasks you're going to need to know how to do. One such task is renaming files and folders.

You might think there's a handy rename command built into the system. There is, but it's not what you assume. Instead of renaming a file or folder, you move it from one name to another, with the mv command. This task couldn't be any easier.

Linux 101: Listing files and folders within a directory - TechRepublic

For those new to Linux, you might be a bit concerned about learning the command line. After all, you probably come from a platform that uses a GUI for nearly every task and haven't spent much time with a command line interface. Fear not, that's what we're here for.

This time around, I want to show you how to list files and folders within a directory. This may sound like a very rudimentary task, but you'll be surprised at how much information you can actually glean from a single command. We're going to start out with the basics.

First, log in to your Linux system. If this is a GUI-less server, you'll already be at a terminal window, so you're ready to go. If not, open a terminal app and you should find yourself in your home directory.

qBittorrent 4.3.3 Released! How to Install in Ubuntu 20.04, 20.10

The qBittorrent 4.3.3 was released a few days ago. Here’s how to install it in Ubuntu 20.04, Ubuntu 20.10, Ubuntu 18.04, and Linux Mint 19.x / 20.

This release contains mainly bug-fixes. Because Xcode doesn’t support C++17, Mac OS 10.13 (High Sierra) is no longer supported. And Ubuntu 18.04 is highly to be dropped in the next release.

Linux 101: How to create a directory from the command line - TechRepublic

Hello admins, Jack Wallen here with a Linux 101-level tip. This time around we're going to learn how to create a directory from the command line. I know, it sounds incredibly basic. It is, but it's also a skill you're going to need to know. Why? Because at some point you're going to be faced with administering a Linux server without a GUI.

When that happens, you'll be glad you know how to create a directory from the CLI.

But how do you do it? It's actually incredibly simple.

Gitlab runners with nspawn

I need to setup gitlab runners, and I try to not involve docker in my professional infrastructure if I can avoid it.

How to install Notepad++ on Ubuntu 20.04 LTS

Even though it has a small size but it has core word processor features and known for the ability to handle the syntax of all common programming languages or ​​even more.

Notepad ++ doesn’t heavy on resources that’s why we can easily install it on Linux distros such as Ubuntu to access various tools, to get support in our work with syntax highlighting, multi-view, drag & drop, auto-completion, and much more.

Being an open-source program, its source code is available on its official website plus it supports plug-ins to extend features that make work even easier. We can select Plugin-ins during installation.

How to install Code::Blocks on a Chromebook

Today we are looking at how to install Code::Blocks on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

How to Create a Web App in Linux Mint

If you haven't heard, Linux Mint 20.1 "Ulyssa" just dropped, and it comes prepackaged with a new utility called Web App Manager. In short, it allows you open and use a website, such as Twitter, Facebook, or Discord, as if it were a standalone app.

Here's how Mint's Web App Manager works and how to put it to use.

How to force awk not to print a newline

I have two columns (fields) in my text file. I am trying to insert ‘|' between two and create an HTML table based upon the updated file.

7 fun Linux containers/image transports features | Enable Sysadmin

If you work with Linux containers, here are seven fun transports features that you need to know.

How to install Kdenlive 20.12 on a Chromebook

Today we are looking at how to install Kdenlive 20.12 on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

How to install Podman on Ubuntu - TechRepublic

For those who don't know, Podman is the drop-in replacement for Docker on the Red Hat/CentOS/Fedora environments. This new container technology improves on Docker by decentralizing the components necessary for container management. Instead of having a single daemon for everything, Podman uses individualized components that are only used when necessary.

How to use the new DEB822 apt format on Ubuntu - TechRepublic

If you're a long-time Ubuntu user, there's something new that's arrived with the latest iteration of the platform that will trip you up for a while. Said something new is the 822 apt source format. You're probably used to apt source files that contain a single line like deb http://repository.spotify.com stable non-free.

How to Store a Linux Command as a Variable in Shell Script

Shell scripting is quite popularly used to automate stuff in Linux. It is used not only for system and server administration purposes but also by regular Linux users for automating day to day stuff on their systems.

A shell script is nothing but a sequence of commands; which a command-line interpreter (Eg. Bash, Zsh) will run. Along with the sequence of commands, there are features like loops, conditional statements, variables that can be used in a shell script.

How to configure WireGuard VPN client with NetworkManager GUI

WireGuard is an open-source VPN protocol implementation which is quickly gaining its popularity among VPN users due to its speed, ease-of-use and well-designed codebase. WireGuard kernel module is shipped with the mainline Linux kernel 5.6 or later, and its userland tools are already incorporated into the base repositories of all modern Linux distributions. If you are looking to set up a DIY VPN router on a public VPS under your control, there is really no reason not to try WireGuard.

Setting up a WireGuard VPN router does not require any expert knowledge on the underlying VPN protocol, nor involve learning cryptic configuration language or huge configuration space. There are also various user-friendly frontends in the works that make client-side VPN configuration straightforward.

How to Install Scribus (Desktop Publishing Tool) on Linux

Scribus is a free and open source desktop publishing (DTP) tool available for Linux, UNIX and Windows platform. Scribus is used to create PDF files, e-books, newsletter, magazines and posters etc. It can also be used to edit the existing PDF file.

In this article, we will learn how to install and use scribus on different Linux distributions to create publication. To Install scribus, sudo rights or privilege access is needed

How to Fix “No Command” Error on Android

It is common in Android that when trying to access the recovery mode or install a new software update, the phone is waiting for a command to access the recoveryoptions. However, in some cases, the phone may be stuck on the “No Command” screen.

In this article we will provide some solutions to help you fix this issue so that you can start your Android phone normally.

How to Edit PDF Files in Linux Desktop

PDF (Portable Document Format) is popular file system used specially for documentation. In all the Linux distribution you can find PDF viewer but not PDF editor. PDF editor allow you to edit, annotate, highlight and remove the content in PDF file. Not only editing it also allows you to merge, split the PDF files.

In this article, I’m going to show how to install and use some popular PDF editor in Linux desktop environment. In this article, I have used Ubuntu 20.0 LTS desktop environment for the demonstration of these PDF editors.

How To Install Invoice Ninja on CentOS 8 - idroot

In this tutorial, we will show you how to install Invoice Ninja on CentOS 8. For those of you who didn’t know, Invoice Ninja is a free and open-source web-based application software that can end up being used for invoicing, payments, time traffic monitoring, and many more. It is the particular best solution for invoicing and invoicing customers. You can easily create in addition to send invoices online in seconds. Account Ninja allows you to create your current own custom invoice and show a new live invoice as a PDF record.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step by step installation of Invoice Ninja on CentOS 8.

How To - Linux List Disk Partitions Command

Essential Guide: How to Install Docker on Ubuntu 20.04 LTS (Beginners Guide)

Docker is a combo of ‘platform as a service’ products and services which use OS virtualisation to provide software in packages called containers.

Containers contain everything an app, tool or service needs to run, including all libraries, dependencies, and configuration files. Containers are also isolated from each other (and the underlying host system), but can communicate through pre-defined channels.

Demux, mux and cut MP4 in ffmpeg

Sometimes video and audio needs to be separated into individual files (aka demuxed). This can be handy when some audio artifacts need to be removed (e.g. noise or buzz) from the audio track (aka stream). This can be done easily...

Oracle Linux 8: Containers made easy with short training videos

Container technology provides a means for developers and system administrators to build and package applications together with libraries, binaries, and configuration files so they can run independently from the host operating system and kernel version. You can run the same container application, unchanged, on laptops, data center virtual machines, and on a cloud environment.

Fix for 2createpackages in woofQ

WoofQ is the build system for EasyOS. It has scripts '0setup', '1download', '2createpackages' and '3buildeasydistro', that are run in that order. The script '2createpackages' splits each input package into _EXE, _DEV, _DOC and _NLS components.

Recently, when compiling LibreOffice in EasyOS on the Pi4, the configure step reported that the system boost libraries cannot be used, as some header files were missing. So, I had to use the internal boost, which does make the final LibreOffice PET bigger than it could have been.

How to Install and Remove Packages in Arch Linux

Want to install packages on Arch Linux but do not know how? A lot of people face this problem when they first migrate from Debian-based distributions to Arch. However, you can easily manage packages on your Arch-based system using package managers.

Pacman is the default package manager that comes pre-installed in every Arch distribution. But still, there's a need for other package managers as Pacman doesn't support packages from the Arch User Repository.

How to Manage Systemd Services with Systemctl on Linux

Systemd a standard process for managing start-up services in Linux operating systems. It is used for controlling which programs run when the Linux system boots up. It is a system manager and has become the new standard for Linux operating systems. Systemd allows you to create a custom systemd service to run and manage any process. In this tutorial, we will explain how to manage services with systemd on Linux.

How to install Synfig Studio on Linux Mint 20.1 - YouTube

In this video, we are looking at how to install Synfig Studio on Linux Mint 20.1.

How to install Ubuntu Unity Remix 20.10 - YouTube

In this video, I am going to show how to install Ubuntu Unity Remix 20.10.

How to Exclude a Directory While Finding Files in Linux

In Linux, the find command is used to search for files or folders from the command line. It is a complex command and has a large number of options, arguments, and modes.

The most common use of the find command is to search for files using either a regular expression or the complete filename(s) to be searched.

How to Copy Files with Specific File Extension Recursively

In Linux, the command ‘cp‘, which standards for ‘Copy‘ is used to copy files and folders to another folder. It is available by default in Linux as part of the GNU Coreutils set of tools.

The most basic use of the cp command is to specify the files to be copied as the arguments and to specify the target folder as the last argument.

How to Copy Large Number of Files in Linux

We use the cp command in Linux to copy files and directories from one directory to another. It can be simply used to copy a few files or directories, or it can be used with the '-r' argument (which stands for ‘recursive‘) to copy a directory and the whole directory tree structure underneath it.

What is /dev/null in Linux

The ‘/dev‘ directory in Linux and Unix based systems contains files corresponding to devices attached to the system. For example, as seen in the screenshot below, the CD drive is accessed using ‘cdrom‘, DVD drive with ‘dvd‘, hard drives are accessed using ‘sda1‘, ‘sda2‘, etc.

All these files communicate with the Linux system through the respective files in ‘/dev‘. The input/output processing of the devices takes place through these files. This is due to an important feature of the filesystem in Linux: everything is either a file or a directory.

What is ‘> /dev/null 2>&1’ in Linux

/dev/null is a pseudo-device file in Linux, which is used to discard output coming from programs, especially the ones executed on the command line. This file behaves like a sink, i.e. a target file which can be written, however as soon as any stream of data is written to this file, it is immediately deleted.

This is useful to get rid of the output that is not required by the user. Programs and processes can generate output logs of huge length, and it gets messy at times to analyze the log.

Learn the main Linux OS components

Evolved from Unix, Linux provides users with a low-cost, secure way to manage their data center infrastructure. Due to its open source architecture, Linux can be tricky to learn and requires command-line interface knowledge as well as the expectation of inconsistent documentation.

In short, Linux is an OS. But Linux has some features and licensing options that set it apart from Microsoft and Apple OSes. To understand what Linux can do, it helps to understand the different Linux OS components and associated lingo.

How to Redirect Output to /dev/null in Linux

In Linux, programs are very commonly accessed using the command line and the output, as such, is displayed on the terminal screen. The output consists of two parts: STDOUT (Standard Output), which contains information logs and success messages, and STDERR (Standard Error), which contains error messages.

Many times, the output contains a lot of information that is not relevant, and which unnecessarily utilizes system resources. In the case of complex automation scripts especially, where there are a lot of programs being run one after the other, the displayed log is huge.

How to Move Large Number of Files in Linux

To move files from one directory to another, the ‘mv‘ command is used in Linux. This command is available in Linux by default and can be used to move files as well as directories.

How to Limit the Depth of Recursive File Listing in Linux

In this article, you will learn how to list file directory structure and limit the depth of recursive file display in Linux.

How to Find Top Running Processes by Memory Usage

We will use the top command-line tool, which is a task manager in Unix and Linux systems that shows all the details about running processes with memory usage.

How to Extract Email Addresses from Text File in Linux

In this article, you will learn how to extract Email addresses from a text file in Linux, using the handy command-line tool Grep.