json

All posts tagged json by Linux Bash
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    The blog post details using the `lsblk --json` command in Linux to programmatically manage block devices. It explains `lsblk`'s importance in viewing device relationships and its JSON output option for easy scripting. The article provides simple `lsblk` usage examples, an executable script using `jq` to extract device names and sizes, and discusses the command's integration into automation scripts for efficient storage management in system administration and DevOps.
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    The blog outlines how to extract JSON values using `grep -oP` in Bash when tools like `jq` are unavailable. It explains that combining the `-o` and `-P` flags enables intricate pattern matching with Perl-compatible regular expressions to effectively pull specific values from JSON. The article provides practical examples but notes limitations such as handling complex JSON structures and potential formatting issues.
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    Explore the art of processing JSON and XML data using Bash in this comprehensive guide aimed at full stack developers and system administrators. This blog post delves into using jq and xmlstarlet for effective data manipulation, covering practical scenarios like system configuration and API interfacing, and integrating these skills into AI and ML workflows for enhanced data-driven application management.
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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 explores the use of `jq`, a powerful command-line tool for JSON parsing and processing in Linux Bash. It covers how to install `jq` on various Linux distributions, basic usage examples, and advanced techniques for handling JSON data from APIs, configuration files, and more. The guide aims to aid developers, system administrators, or tech enthusiasts in effectively using `jq` to parse, filter, map, and transform JSON structures, enhancing data manipulation capabilities.
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    Explore HTTPie, a user-friendly command-line HTTP client that outshines `curl` and `wget` by offering a more intuitive syntax for web development and API testing. This guide details installing HTTPie across various Linux distributions and introduces basic commands for making HTTP requests, handling JSON, uploads, authentication, and more. Ideal for both novices and seasoned developers, HTTPie streamlines HTTP communications to enhance productivity.
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    Discover the capabilities of `jq`, a robust JSON processor for Linux, to slice, filter, and transform JSON data. This blog post explains how to install `jq` across different Linux distributions and demonstrates its practical use through various examples, making it a vital tool for developers and IT professionals handling JSON.
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    Discover how to manage JSON and XML in Bash with 'jq' for JSON and 'xmlstarlet' for XML. The guide includes installation steps and practical examples for parsing, querying, and transforming data, enhancing scripting for system administrators and developers. This tutorial is essential for efficient data handling across various programming environments.
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    Explore JSON and XML handling in Bash with tools like `jq` for JSON and `xmlstarlet` for XML. This guide covers installation across various Linux distributions and provides examples of parsing, modifying, and querying data. Ideal for developers and system administrators, it enhances Bash scripting capabilities with detailed examples and additional resources.
Master the management of Linux system services with this guide on using `systemctl`. Learn how to enable, disable, start, stop, and check the status of services to optimize system performance and boot times. This comprehensive article provides practical examples and clear explanations, making it an essential tool for both new and experienced Linux users aiming to master service management.
Discover how to create a basic port scanner using Linux's `/dev/tcp` and the `timeout` command in this blog post. The `/dev/tcp` pseudo-device facilitates direct TCP socket interactions from the Bash shell, enabling users to assess port availability. The post showcases how to manage connection timeouts with the `timeout` command to make scanning efficient and provides a script that demonstrates detecting open ports on specified host and port range.
Learn how to mount virtual disk images in Linux with this detailed guide for beginners. Explore essential tools like 'mount' and 'losetup', and processes for handling ISO, IMG, and VDI file types. Utilize `qemu` for advanced disk image types, and uncover the steps for partitioned images and VDI files in VirtualBox using `qemu-nbd`. Ideal for developers and tech aficionados looking to enhance their Linux skills and streamline their workflow.
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 to use `curl` in bash scripts for API calls with this comprehensive guide on LinuxBash.sh. Covering installation on various Linux distributions, the article delves deep into basics and advanced uses, including GET and POST requests, handling API responses with tools like `jq`, and security practices. Ideal for system administrators and developers aiming to automate API interactions.
This article on LinuxBash.sh explains mounting filesystems as read-only in Linux, crucial for data integrity and security. It offers practical guidance for using the `mount` command and modifying `/etc/fstab` for permanent changes. Detailed scenarios, command examples, and tips ensure users can safely manage filesystem operations and enhance system stability. Further resources are recommended for deeper learning on Linux filesystem management.
Learn how to securely mount encrypted drives in Linux with this guide covering LUKS and cryptsetup use. Essential for users concerned about data protection, this tutorial offers detailed steps for encryption, including tools installation, drive setup, secure mounting, and automated boot processes. Ideal for ensuring compliance and safeguarding sensitive information against unauthorized access. Further reading is provided for more advanced topics.
This guide offers insights on managing Flatpak packages, enhancing Linux application distribution via standardized, secure, sandboxed environments. Learn to install Flatpak, add Flathub repositories, and handle applications. Also find commands for installing, updating, and uninstalling software, plus tips for system efficiency and links for deeper exploration of Flatpak's potential. Ideal for both newcomers and seasoned Linux users aiming to refine their software deployment strategies.
The article details best practices for managing temporary files in Linux's `/tmp` and `/var/tmp` directories. It distinguishes between their usages: `/tmp` for data needing persistence only within a current boot session, and `/var/tmp` for files needed beyond a reboot. It emphasizes the importance of properly setting permissions, selecting appropriate storage directories, routinely cleaning up these spaces, and monitoring disk usage for optimal system performance. It also suggests automating cleanups with tools like `tmpreaper` and `tmpwatch`.
This detailed guide explains how to configure gzip compression for Nginx on Linux, highlighting its benefits such as reduced bandwidth use and faster loading times. It covers prerequisites like having Nginx and Linux skills, steps to edit the Nginx config file to enable gzip, setting compression levels, file types for compression, and methods to test the setup. The article ends with best practices and further reading suggestions to enhance understanding of Nginx optimizations.