Some projects include their own Gradle launcher, while you may also need a Gradle command in your shell for work outside that project. Gradle is a build automation tool that reads a project’s build definition and runs tasks such as compiling or testing code. This guide shows how to choose between a project’s Wrapper and
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Managing a Debian or Ubuntu server from a browser calls for an administration tool that runs on the server. Webmin provides that interface, which you access through a browser. I’ll show how to install Webmin from its APT repository and connect to its HTTPS interface. TL;DR Use Webmin’s setup script to configure its APT repository
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Linux password rules can be stored in different places, depending on whether they check a new password or control when an account password expires. A Linux password policy combines password-quality checks with account settings that determine when passwords expire. I’ll show how to inspect the active PAM password stack and read an account’s aging settings
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Running a Java program requires a runtime, while building one also requires a compiler. Debian provides OpenJDK packages through APT, including a runtime and a development kit. This article shows how to check which Java packages your Debian repositories offer and choose the JDK or runtime package to install. TL;DR Install Debian’s default Java development
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A machine set to UTC may show a different local time than you expect. Its timezone applies regional rules to the system clock to produce local date and time. This article explains how to find a zone name and change the Linux timezone with timedatectl. TL;DR: Change the Linux timezone Use timedatectl to choose an
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A short status message is often all a shell script needs to show while it runs. The Bash echo command writes its arguments to standard output and normally adds a newline. I’ll show how to print text and variables, then explain when echo behaves differently across shells. TL;DR: Echo command in Linux The Bash echo
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Setting up a database on Debian or Ubuntu means installing its packages and confirming the server starts. MariaDB is a database server that stores structured information and answers SQL queries from applications or a client program. I’ll show you how to install MariaDB from the distribution repositories and check that its service is running. TL;DR
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A server is ready for monitoring, and you need a place to view the measurements it collects. Grafana queries a configured data source and displays its values in dashboard panels. This article walks through installing Grafana from its signed APT repository and checking the service and sign-in page. TL;DR: Install Grafana from its APT repository
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A log file can hold more lines than you can scan by eye when you need to find an error message. grep is a command-line tool that searches text and prints the lines that match. I’ll show you how to search a file with grep and read its matches and exit status. TL;DR: Search for
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Getting a WordPress site ready on Ubuntu starts with setting up the server that will host it. WordPress is a PHP content management system that stores site content in a database and provides an admin interface. This guide walks through installing WordPress on Ubuntu. It also explains what to check after setup. TL;DR Install Apache,
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