How to Add Users to sudo group in Linux

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In this guide, we are going to learn how to add users to sudo group in Linux. More often than not, you want, as a non-root user, to run commands with elevated privileges in Linux. So the only way this can happen is to give user sudo privileges by adding them to a sudo group or to sudoers file. How...

Example Usage of ps Command in Linux

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Example Usage of ps Command in Linux
This guide will take you through various example usage of ps command in Linux/Unix system. ps, an acronym for Processes Status is a utility used to display running processes on Linux/Unix systems system. It reports a snapshot of the current system processes. Syntax: ps ps accepts three types of options: 1.UNIX options, which may be grouped and must be...

Delete Lines Matching a Specific Pattern in a File using SED

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In this guide, we are going to learn how to delete lines matching a specific pattern in a file using SED. SED is a stream editor that performs basic text filtering and transformations on an input stream (a file or input from a pipeline). Delete Lines Matching a Specific Pattern in a File using SED In our previous guide, we covered...

Restrict SFTP User Access to Specific Directories in Linux

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In this guide, we are going to learn how to restrict SFTP user access to specific directories in Linux systems. SFTP, an acronym for Secure File Transfer Protocol is a secure file transfer protocol that runs over SSH. It offers all the features offered by the legacy FTP protocol but in a more secure manner. Restrict SFTP User Access to...

Install Cheat Command on Ubuntu 20.04

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In this tutorial, you will learn how to install cheat command on Ubuntu 20.04. Cheat is a Python based command line utility that allows you to create and view interactive cheat sheets on the command-line. It was designed to help remind *nix system administrators of options for commands that they use frequently, but not frequently enough to remember. Install Cheat Command...

Installing Perf Performance Analysis Tool on Ubuntu 18.04

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Good day all. This guides is about installing Perf performance analysis tool on Ubuntu 18.04. Perf, also known as perf_events is a powerful performance counter for Linux systems that gathers data about hardware events such as instructions executed, branches mispredicted or cache-misses suffered. It also provides very low overhead profiling of applications to trace dynamic control flow and identify hotspots,...

Connect to WiFi in Linux Using NMCLI command

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Install and use NMCLI tool on Debian Linux
This tutorial will guide you on how to connect to WiFi in Linux using NMCLI command. NMCLI is a command-line tool for controlling NetworkManager and reporting network status. It can be utilized as a replacement for nm-applet or other graphical clients. It is used to create, display, edit, delete, activate, and deactivate network connections, as well as control and...

Install Foxit PDF Reader on Ubuntu 20.04

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In our today's guide, we are going to learn how to install Foxit PDF reader on Ubuntu 20.04. Foxit PDF reader is available in both Free and Enterprise editions. Some of the features provided by Foxit PDF reader include but not limited to; Intuitive User InterfaceCustomize ToolbarTouch Screen SupportPDF PortfoliosForm FillingForm Data Import/ExportParticipate in Shared ReviewComments ToolsManage CommentsInsert Images, Videos,...

Example Usage of ls Command in Linux

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Example Usage of ls Command in Linux
In this tutorial you will learn how to use ls command in Linux/Unix Operating Systems. ls command is used to list files or directories contents from the command line (CLI). Through ls command, we obtain information about the files in the current or in any other directory. Command line syntax of ls command. ls ... … Let’s dig in. List Current Directory Contents Open...

Lock Linux User Account after Multiple Failed Login Attempts

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Lock Linux User Account after Multiple Failed Login Attempts
Follow through this guide to learn how to lock Linux user account after multiple failed login attempts. Linux through Pluggable Authentication Modules, PAM, can be configured to lock accounts after specific number of failed login attempts. Such are some of the security measures that aims at curbing brute force authentication attacks. This can be achieve specifically through pam_faillock module....