SysAdmin

The core of the grep command (Global Regular Expressions Print) is regular expressions. Master grep regex through the hands-on examples in this guide.

Screen is a powerful tool for working in the command line. It lets you create, monitor, and switch between several different windows. With Screen, you can multitask much like a graphical interface. It can also run in the background, waiting for you to reattach to the session. This makes it an excellent option for preserving work if a remote connection is lost.

SED is a text stream editor for modifying files in a fast and efficient way. Learn how to use the sed command and its options through easy-to-follow examples.

The wc command is part of the coreutils Linux package containing the GNU core utilities. This tutorial will show you how to use the wc command and its options. It will also provide use examples and demonstrate ways in which wc works together with other commands.

A syslog server gathers and organizes log messages from various devices on the network. This article explains what a syslog server is, its purpose, and lists examples for the best free and paid syslog servers.

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.