SysAdmin

The dpkg command in Linux helps unpack Debian packages (.deb) and install software on Debian and Debian-based OS-es like Ubuntu. Learn how to use the command in this tutorial.

The sort command allows you to arrange a file's contents in various ways, without changing the original file. This tutorial shows how to use the sort command.

The less command is a Linux terminal pager allowing you to open large files in the terminal one page at a time. Follow this guide and master the less command.

This tutorial shows how to read a file line by line using the Bash shell. See five different methods and process a file's contents effectively.

Data integration tools help transport, modify and integrate data into various systems. Learn about the different available tools today and leverage the power of your data.

The lspci command lets you display information about PCI devices connected to your system. Learn how to use the lspci command in this tutorial.

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.