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.
This article delves into the functions of `/mnt` and `/media` directories in Linux, explaining their roles as mount points for managing storage devices. The `/mnt` directory is utilized for temporary, manual mounts by system administrators, while `/media` is designed for automatic mounting of removable media like USB drives and external hard disks. Best practices in managing these directories to maintain an organized and efficient filesystem are also discussed.
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 how to use `losetup` for managing loopback devices in Linux. This guide covers the essentials, from setting up and attaching disk images with `losetup` to manipulating these virtual disks for tasks like system recovery and software testing. Learn to adjust settings for specific segments of disk images and effectively manage mounted file systems. Ideal for enhancing your skills in Linux system administration.
This article provides an in-depth look at the system requirements for several popular Linux distributions, including Ubuntu, Fedora, Debian, Arch Linux, Linux Mint, and Raspberry Pi OS. It is designed to help users match their hardware with the appropriate Linux distro, ensuring optimal performance. The guide covers CPU, RAM, and storage needs for each distribution and offers additional resources for further information.
Discover the capabilities of `systemd.automount` in Linux, which efficiently manages filesystems by mounting them only when needed. This guide provides a detailed tutorial on creating `.mount` and `.automount` unit files, particularly for network systems, reducing boot times and enhancing system performance and reliability. Ideal for system administrators looking to optimize Linux systems through advanced service management techniques.
Learn essential DNS troubleshooting with the `dnsutils` package, featuring tools `dig` and `nslookup` for Linux users. This guide explains their installation across various distributions and provides basic usage examples to efficiently diagnose and resolve DNS issues, ensuring network reliability. Further resources offer advanced techniques and best practices for deepening your DNS knowledge.
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.
This blog post on LinuxBash.sh is a comprehensive guide to trapping and handling signals in Bash scripts, crucial for ensuring script reliability. It details signal trapping, covers common signals like SIGINT and SIGTERM, and provides examples of the `trap` command for setting up handlers. The article is valuable for those looking to improve script safety and includes sections on package installations for handling tools across various Linux package managers. Further reading links are also provided.
This blog details how to use Live USB and Rescue Mode for system recovery, essential tools for diagnosing and fixing corrupted systems. It covers creating a Live USB with tools like Rufus, booting in Rescue Mode, and step-by-step troubleshooting, making it invaluable for both IT professionals and casual users seeking to prevent data loss and manage system crises effectively.
Explore the Linux `watch` command's functionalities and applications in real-time command monitoring, ideal for system administrators and developers. Learn how to install `watch`, customize intervals, and apply it to efficiently track dynamic outputs like system logs and process states through practical examples. This guide is an essential resource for anyone looking to enhance real-time monitoring and system analysis in Linux.
This guide details how to set filesystem quotas in Linux, providing system administrators with essential steps to manage disk space by limiting storage for users or groups. From installing the `quota` tool via different package managers to creating databases and assigning quotas, it covers all necessary aspects to ensure system stability and fair resource distribution.
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.
This article provides a comprehensive guide on using GNU Parallel, a command-line tool for executing multiple shell commands concurrently across different computers. It outlines the benefits of parallel processing in Bash, installation steps for various Linux distributions, and practical usage examples. Additionally, advanced tips such as job control, maintaining output order, and progress tracking are discussed, making GNU Parallel a valuable tool for enhancing efficiency in tasks like data processing and backups.