SysAdmin

Having a precise list of installed packages helps system admins maintain, replicate, and reinstall systems. In this tutorial, learn how to list all installed packages with apt and dpkg, save the list to a file or list specific packages and versions.

The file command in Linux determines the type of a file. Learn how to use the file command in this tutorial.

A HereDoc helps pass multiple commands to another command, making redirection and Bash scripts easier to understand. Learn how to write a HereDoc through various examples in this guide.

Git has a lot of features that help you manage your project and easily access previous commits. This article uses simple commands to show you how to revert to an earlier commit quickly.

You can activate line numbering in Vim by showing absolute, relative or hybrid lines. Displaying or hiding line numbers can be done in a couple of simple steps.

Working with files is part of everyday tasks in programming. This tutorial teaches you elementary file handling in Python.

The printf command produces formatted text outputs in the terminal. This tutorial shows how to use the printf command to print and format a variable output in Linux.

Workbench is a visual tool for managing MySQL databases . Its graphical interface allows administrators and database architects to model data, build and run SQL queries, and maintain a database. Get a better understanding on how Workbench works, how to install the software and configure it for your needs.

The Bash read command reads a user's input or a file descriptor and allows splitting into different fields. Learn how to utilize the command in this guide.

The Apache Tomcat is a web server that allows you to run Java code. This guide shows how to install and set up the Tomcat server on Windows.