Linux Tutorial Archives •

How To Change System Environment Variable Path Value On macOS & Linux Permanently

Leave a Comment / Linux Tutorial, Mac Tutorial

On macOS and Linux, you can change the system environment variable PATH permanently by modifying the appropriate shell configuration file or /etc file. The process may vary slightly depending on the shell you’re using (e.g., Bash, Zsh). Here are the general steps to change the PATH variable permanently on macOS and Linux.

How To Install GUI System Monitor In Linux Server

How To Connect To AWS EC2 Linux Instance From Windows Remote Desktop

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In this article, I will tell you how to set up an AWS ec2 Linux server instance and connect to it from windows remote desktop.

How To Connect AWS EC2 Linux Instance Using SSH Client Putty From Windows

How To Install PostgreSQL & PgAdmin On Ubuntu

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This article will tell you how to install the PostgreSQL database server and PgAdmin ( PostgreSQL GUI Manager ) On Ubuntu Linux.

How To Change Terminal Background Color And Font Size For Mac, Linux, Windows

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This article will tell you how to change the terminal styles including terminal background color, font size for Mac, Linux, and Windows.

How To Use dpkg On Linux

Leave a Comment / Linux Tutorial / dpkg, Ubuntu

Dpkg is the abbreviation of the Debian package. It is a suite management system specially developed for the “Debian” operating system, which is used for software installation, update, and removal. All Linux distributions from “Debian” use dpkg, such as “Ubuntu”.

How To Open Task Manager On Mac, Linux, Windows

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This article will tell you how to open the task manager on Mac, Linux, Windows. It will also tell you how to use the task manager to manage program processes as well.

How To Fix The Error waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 13083 (unattended-upgr)

1 Comment / Linux Tutorial / dpkg, Ubuntu

Recently, I run the command $ sudo apt update in my Ubuntu virtual machine, it runs successfully. But after that, when I run the command $ sudo apt upgrade, it show me the warning message Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 12827 (unattended-upgr). This article will tell …

How To Fix The Error waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 13083 (unattended-upgr) Read More »

How To Fix E: Package ‘vnc4server’ Has No Installation Candidate

Leave a Comment / Linux Tutorial / Ubuntu

When I run the command sudo apt-get install vnc4server in ubuntu 20’s terminal, I get the error message E: Package ‘vnc4server’ has no installation candidate. This article will tell you how to fix it.