perl

All posts tagged perl by Linux Bash
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    Learn how to enhance Apache server performance using `mod_perl` to run Perl scripts directly within the server, accelerating your web applications. This guide details the installation and configuration of Apache with Perl on a Linux system, covering necessary steps from enabling `mod_perl` to testing with your first Perl script. Ideal for both development and production environments, this setup integrates robust Perl functionalities into the Apache ecosystem.
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    This comprehensive guide details how to configure Perl applications for production on Linux, covering installation, security, and optimization. It provides step-by-step instructions on setting up the environment, managing dependencies, securing applications, and enhancing performance with profiling and caching. Ideal for both novice and experienced developers, this resource ensures efficient and robust Perl applications on Linux platforms.
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    Discover the versatility of Perl for web automation in Linux environments. Ideal for tasks such as data scraping, form submissions, and automated testing, this guide covers Perl installations, utilizing CPAN modules, and provides script examples. It also explores combining Perl with Bash scripting for enhanced process automation, making it a great resource for developers aiming to boost efficiency in their projects.
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    Learn how to parse and generate JSON with Perl, an essential skill for Linux web developers working with data exchange between servers and web applications. This guide covers setting up Perl, using CPAN libraries for JSON tasks, converting JSON into Perl data structures, creating and enhancing JSON outputs, and handling Unicode seamlessly. Gain insights to bolster applications using Perl’s strong capabilities in text manipulation and integration.
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    This article, "Handling Form Data and Sessions in Perl," serves as an extensive tutorial on using Perl for web development specifics like form data and user sessions. Utilizing CGI.pm and CGI::Session modules, it covers the basics of CGI, creating CGI objects, fetching data from forms, and session management. The guide also integrates Bash for task automation, supplemented by practical code examples to enhance web applications' functionality and user interactivity.
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    Explore effective debugging strategies for Perl web applications in this comprehensive guide, perfect for developers using Linux Bash. Learn to set up your development environment, use the built-in Perl debugger, leverage comprehensive logging with modules like Log::Log4perl, and employ advanced tools like Devel::NYTProf for profiling. This guide will help enhance your debugging skills, ensuring your Perl applications are efficient and bug-free.
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    Explore the power of Perl and the Dancer framework in creating REST APIs with this guide. Learn to set up Perl, initialize a Dancer project, and construct a RESTful API managing user data via CRUD operations. This article simplifies syntax, reduces boilerplate, and provides additional reading resources for mastering REST API development with Perl. Ideal for developers at any level.
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    Discover the essentials of managing Perl modules with CPAN in a Linux environment through this comprehensive guide aimed at web developers. Learn to configure and optimize CPAN for module installation, version control, and dependency management. The article includes step-by-step instructions for setting up CPAN, using cpanminus for module installation, handling upgrades, and best practices to enhance your development workflow.
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    This guide offers a detailed tutorial on setting up a CGI-based Perl application on a Linux system, aimed at those managing legacy systems or interested in server-side scripting. It covers installing Perl and Apache, configuring Apache for CGI scripts, writing and testing a CGI Perl script, and emphasizes security and error handling for reliable application performance.
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    Learn how to install and manage Perl on Linux systems with our detailed guide aimed at web developers. Explore methods to integrate Perl—the "duct tape of the Internet"—into your Linux environment and utilize its powerful scripting abilities. The guide covers checking Perl installations, installing on Linux distros like Ubuntu and Fedora, managing Perl modules via CPAN, and using local::lib. Also, get insights on enabling Perl for web development with the Dancer2 framework.
Discover how to explore the contents of Linux software packages without installing them. This insightful guide for developers and tech experts details methods using popular package managers like `apt`, `dnf`, and `zypper`. Learn to download and unpack `.deb` and `.rpm` packages to inspect contents, ensuring security, custom installations, or gaining educational insights with tools like `dpkg-deb`, `rpm2cpio`, and `cpio`. Ideal for those conducting security audits or exploring software packages across different Linux distributions.
Learn to tidy up Linux systems by managing unnecessary packages and dependencies via popular package managers like APT, DNF, and Zypper. The guide covers critical steps such as updating lists, upgrading packages, and safely removing unneeded dependencies, enhancing system efficiency. Practical tips and additional resources for deeper understanding are also provided.
Learn how to configure HTTP/3 with Apache, leveraging the new QUIC protocol for improved web performance. This guide covers the installation of Apache and the experimental mod_http3, adjustments for QUIC protocol support, and firewall settings for UDP traffic on port 443. Despite being challenging due to limited native support, adopting HTTP/3 can significantly better your site's reliability and speed.
Learn about `tmpfs`, a speedy, volatile filesystem in Linux that uses RAM and swap for temporary data storage. `tmpfs` improves performance for frequent read/write operations, enhances security by clearing data on reboot, and reduces SSD wear. Our guide outlines easy mounting steps, size configuration, and making `tmpfs` persistent with `/etc/fstab`, plus best practices for memory and data management. Ideal for scenarios requiring quick temporary storage access.
Discover the utility of `yq`, a command-line tool for processing YAML files, akin to `jq` for JSON. Ideal for developers and sysadmins, yq supports reading, in-place editing, and complex data manipulations directly from the terminal. The blog covers installation across Linux systems and offers a practical guide to efficiently using yq in various tasks and scripts, making it an indispensable tool for configuration management.
Discover how to enhance the security of your Linux systems by verifying APT repositories with signed GPG keys. This guide offers a deep dive into GPG keys and repository signing, with practical steps for securing APT (Debian/Ubuntu), DNF (Fedora/RHEL/CentOS), and Zypper (openSUSE/SUSE) package sources, protecting against tampered software threats. Learn key management and security practices to maintain a secure Linux environment.
Discover 24 Linux desktop environments in this comprehensive guide on LinuxBash.sh, perfect for both expert system administrators and newcomers. It explores popular options like GNOME, KDE Plasma, and less known ones like Enlightenment and Budgie, detailing their customization, efficiency, appearance, and system demands. Find installation tips and insights into each environment's relevance and popularity to choose the best desktop for your computing needs based on specific user requirements and hardware capabilities.
Explore the essentials of the Linux `perf` tool for system performance optimization in this article, ideal for system administrators and developers. Learn installation procedures across various Linux distributions, basic commands for profiling, monitoring kernel functions, generating flame graphs, and more. A dependable guide for those new to performance analysis or seeking to expand their skills.
This technical blog post introduces Glow, a terminal-based tool for rendering Markdown files within the Linux terminal. It highlights key features like stylized reading, pager support, responsiveness, and search integration. The article includes detailed installation instructions for different Linux distributions using package managers like `apt`, `dnf`, and `zypper’, along with practical usage examples and further reading links for those looking to enhance their terminal experience with Markdown.
Discover the powerful tools `diff` and `patch` for file comparison and patching on Linux. This guide provides step-by-step instructions on using `diff` to compare files line by line and `patch` to apply changes, streamlining the management of code and configuration file updates. Learn installation tips, basic and advanced usage through practical examples, and explore further resources to master these essential tools for developers, DevOps engineers, and system administrators.
Explore effective methods to resolve broken package dependencies in Linux using `apt`, `dnf`, and `zypper`. This guide provides step-by-step procedures tailored for Debian/Ubuntu, Fedora/Red Hat, and openSUSE systems, including updating package lists, upgrading systems, and employing specific commands like `--fix-broken install`. Additional resources for further understanding are also suggested.
This article delves into the practice of package pinning in APT, a key tool in Debian and Ubuntu for prioritizing certain package versions during updates, ensuring system stability. Detailed steps for setting pin preferences in `/etc/apt/preferences` are provided, alongside comparisons with other package managers like DNF for Fedora and Zypper for openSUSE, highlighting their unique approaches to package prioritization.
Discover the benefits of AppImage for portable applications across Linux systems. This guide discusses AppImage, a universal software package format enhancing compatibility and simplifying distribution across Linux without installation or root permissions. Learn to download, execute, and run AppImages, and integrate them using tools like AppImageLauncher for a seamless Linux experience.
The article provides a comprehensive guide on controlling fan speeds in Linux using `lm-sensors` and `pwmconfig`. It explains the installation, setup, and use of these tools to monitor and adjust fan speeds based on system temperatures, thus preventing hardware damage due to overheating. The guide also highlights the risks of improper configurations and emphasizes careful monitoring.