Knowledge Base
427 articles and guides on knowledge base from the NexonHost team — page 2 of 18.

How to use cpio command in Linux.
How To Use Cpio Command In Linux. Copy in and copy out are referred to as cpio. In Linux/UNIX, it is a command-line tool to generate, list down, and extract archive files. A cpio archive file is produced by it. The entire file system can be copied to an archive file. From the standard input,…
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How to use cmp command in Linux.
How To Use Cmp Command In Linux. The “cmp” command in Linux is used to compare the contents of the two files hence reporting whether the two files are identical or different. This command comes with multiple options that can be paired with it to customize its output. Let us talk about this command…
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How to use fg command in Linux.
How To Use Fg Command In Linux. $ fg job_spec Additionally, you can invoke one of the symbols shown below to reference a job on the current shell. %- – This represents a previous job %% or %+ – This shows the current job. %number – This represents the job number, for instance, %3 or…
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How to use return command in Linux.
How To Use Return Command. The “return” command is an important feature in the Bash scripting language used on Linux operating systems. This command allows you to return a value from a function or Bash script and use it further in other parts of the script. In this article, we will explore how to…
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How to use ifup & ifdown command.
How To Use Ifup & Ifdown Command. In the world of Linux and Unix-like operating systems, network management plays a crucial role. Among the many tools available for this purpose, the ifup and ifdown commands are particularly useful. These commands help you configure and manage network interfaces…
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How to use logname command in Linux.
How To Use Logname Command In Linux. In the world of Linux and Unix-based systems, the command-line interface is a powerful tool that allows users to interact with the system efficiently. One such command that might not be as well-known as some others is “logname.” This command is a utility for…
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How to use xdg-open command in Linux.
How To Use Xdg-Open Command In Linux. Linux is renowned for its flexibility and powerful command-line tools, and the xdg-open command is no exception. xdg-open is a versatile utility that simplifies the process of opening files, URLs, and applications on a Linux system. In this article, we will…
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How to use uniq command in Linux.
How To Use Uniq Command In Linux. Linux command-line tools offer a wide range of functionality to help users manage and manipulate text data efficiently. One such utility is the uniq command, which is used for identifying and removing duplicate lines from text files. In this article, we will…
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How to use tput command in Linux.
How To Use Tput Command In Linux. The tput command is a versatile and powerful tool in the Linux command-line arsenal. It is primarily used for manipulating and querying terminal capabilities, such as cursor control, text formatting, and color manipulation. In this article, we will explore the…
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How to use split command in Linux.
How To Use Split Command In Linux. In this guide, learn how to use the Linux split command with examples. The Linux split command breaks files into smaller parts and is used for analyzing large text files with many lines. While each split file counts 1000 lines by default, the size is changeable.…
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How to Extract (Unarchive) Files with Tar, Untar, and Gzip commands.
How To Extract (Unarchive) Files With Tar, Untar, And Gzip Commands. In Linux and Unix-like operating systems, the tar command is used to create and manipulate archive files, and gzip is a common compression tool. To extract or unarchive files from a compressed tar.gz archive, follow these steps:…
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How to archive a file with tar gz. and gzip command.
How To Archive A File With Tar Gz. And Gzip Command. Archiving and compressing files is a common task in Linux and Unix-based systems. This article will guide you through the process of creating and extracting tar.gz files using the tar and gzip commands. We will cover the basic syntax, options,…
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How to use ulimit command in Linux.
How To Use Ulimit Command In Linux. ulimit is a built-in Linux shell command that allows viewing or limiting system resource amounts that individual users consume. Limiting resource usage is valuable in environments with multiple users and system performance issues. What Is limits.conf? The…
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How to use tput command in Linux.
How To Use Tput Command In Linux. The tput command uses the terminfo database to make terminal-dependent information available to the shell. The tput command outputs a string if the attribute CapabilityName is of type string. The output string is an integer if the attribute is of type integer. If…
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How to Extract and Create RAR Files.
How To Extract And Create RAR Files. Usually, you’ll come across the .zip or .gz compressed files. However, every now and then, you’ll also encounter RAR files in Linux. Dealing with RAR files in the Linux command line is not that complicated. You extract RAR files with the unrar command: unrar x…
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How to use mmv command in Linux.
How To Use Mmv Command In Linux. In the world of Linux and UNIX-based operating systems, managing files and directories is an essential part of the user experience. One critical aspect of managing these resources is renaming them to better organize or reflect changes in content. Manually renaming…
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How to get Real Visitors IPs on your backend
How to Get Real Visitor IPs in Web Server Access Logs In order to receive the real visitor IPs in your back-end’s access logs when using our remote protection services, your web server must be able to parse X-Forwarded-For headers. Some web servers, such as LiteSpeed, NGINX and IIS support this by…
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How to use make command in Linux.
How To Use Make Command In Linux. This article will show you how to use the Linux make command with examples. The Linux make command is a commonly used utility by sysadmins and developers. The command assists in the compilation process and is a must-have tool for building large applications. This…
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How to use lspci command in Linux.
How To Use Lspci Command In Linux. In this tutorial, we will cover the lspci command syntax and show you different ways to use it. The lspci (list PCI) Linux command displays information about each PCI bus on your system. This includes information about the devices connected to the PCI subsystem.…
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How to use lsof command in Linux.
How To Use Lsof Command In Linux. This article will explain how to use the lsof command in Linux with examples. Introduction The lsof command stands for LiSt Open Files and shows open files and which process uses them. Since Linux sees every object as a file, such as devices, directories, etc.,…
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How to use look command in Linux.
How To Use Look Command. The look command in Linux shows the lines beginning with a given string. This command also uses binary search if the file is sorted. If file is not specified, the file /usr/share/dict/words is used. And then only the alphanumeric characters are compared and the case of…
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How to use let command in Linux.
How To Use Let Command. In this tutorial, we will go over the let command syntax, options, and usage examples. Bash let is a built-in command in Linux systems used for evaluating arithmetic expressions. Unlike other arithmetic evaluation and expansion commands, let is a simple command with its own…
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How to use join command in Linux.
How To Use Join Command. Linux is an open-source operating system that provides users with a wide range of utilities and tools for managing and manipulating data. One such tool is join command, which is used to join two different files based on a common field. join command is a very useful utility…
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How to use jobs command in Linux.
How To Use Jobs Command. A “job” is a set of instructions or a unit of work that is assigned to an operating system for execution. In Linux, the “jobs” command permits you to interact with the system jobs through the terminal directly. This command is also used to check the states of the jobs…
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