Linux Commands

Introduction> Introduction # Accurate time keeping is critical for almost any service or software. Emails, loggers, event systems and schedulers, user authentication mechanisms, and services running on distributed platforms all need accurate timestamps to record events in chronological order.

Introduction> Introduction # While working in a server environment, you’ll spend a lot of your time on the command line. Most likely, you’ll be using the bash shell, which is the default of most distributions.

Introduction> Introduction # When you first create a new Debian 8 server, there are a few configuration steps that you should take early on as part of the basic setup. This will increase the security and usability of your server and will give you a solid foundation for subsequent actions.

Introduction> Introduction # Apt is a command line frontend for the dpkg packaging system and is the preferred way of managing software from the command line for many distributions. It is the main package management system in Debian and Debian-based Linux distributions like Ubuntu.

The author selected the Free and Open Source Fund to receive a donation as part of the Write for DOnations program. Introduction> Introduction # In this tutorial you will use systemd to configure MySQL to restart automatically after a reboot or crash.

Dig is a networking tool that can query DNS servers for information. It can be very helpful for diagnosing problems with domain pointing and is a good way to verify that your configuration is working.

Introduction> Introduction # A Linux server, like any modern computer, runs multiple applications. These are referred to and managed as individual processes. While Linux will handle the low-level, behind-the-scenes management in a process’s life-cycle – i.

Introduction One of the most basic tasks that you should know how to do on a fresh Linux server is add and remove users. When you create a new system, you are often only given the root account by default.

Introduction> Introduction # The grep command is one of the most useful commands in a Linux terminal environment. The name grep stands for “global regular expression print”. This means that you can use grep to check whether the input it receives matches a specified pattern.

Introduction> Introduction # One problem users run into when first learning how to work with Linux is how to find the files they are looking for. This guide will cover how to use the aptly named find command.

Introduction> Introduction # The Go programming language comes with a rich toolchain that makes obtaining packages and building executables incredibly easy. One of Go’s most powerful features is the ability to cross-build executables for any Go-supported foreign platform.

Introduction> Introduction # In recent years, Linux distributions have increasingly transitioned from other init systems to systemd. The systemd suite of tools provides a fast and flexible init model for managing an entire machine from boot onwards.

Introduction> Introduction # In a previous tutorial, we discussed how the ps, kill, and nice commands can be used to control processes on your system. This guide highlights how bash, the Linux system, and your terminal come together to offer process and job control.

The author selected the Free and Open Source Fund to receive a donation as part of the Write for DOnations program. Introduction> Introduction # In this two-part tutorial, you will learn how to configure a Linux service to restart automatically after a reboot or crash using systemd.

Introduction> Introduction # Adding and removing users on a Linux system is one of the most important system administration tasks to familiarize yourself with. When you create a new system, you are often only given access to the root account by default.

Introduction> Introduction # Linux utilities often follow the Unix philosophy of design. Tools are encouraged to be small, use plain text files for input and output, and operate in a modular manner.

Introduction> Introduction # Most modern Unix-like operating systems offer a centralized mechanism for finding and installing software. Software is usually distributed in the form of packages, kept in repositories. Working with packages is known as package management.

Introduction> Introduction # The sed command, short for stream editor, performs editing operations on text coming from standard input or a file. sed edits line-by-line and in a non-interactive way.