This document preserves the historical release notes for Linux v0.95 (March 7, 1992), one of the earliest public kernel versions. These notes provide valuable insight into early Linux development decisions and technical challenges. The original notes are presented here with minor formatting improvements for readability. Copyright Linux 0.95 is copyrighted under the GNU General Public…
Linux v0.12 is a historical kernel release from the early days of Linux development. This document preserves the original release notes with minimal modifications to improve readability and accuracy. These notes are primarily of archaeological interest to those studying early Linux kernel history. Copyright The Linux copyright was updated to conform with the GNU General…
This document preserves the original release notes for Linux kernel version 0.01, the first public release by Linus Torvalds in 1991. These notes provide historical context on the early design decisions and limitations of what would become the world’s most widely used operating system kernel. Contents The 0.01 distribution included: linux-0.01.tar.Z — kernel source code…
Eclipse’s IDE capabilities make it useful for managing larger codebases, especially those version-controlled with Git. The Quick Diff feature lets you see at a glance which lines differ from your last commit—essential when reviewing your work before staging changes. Enable Quick Diff in Eclipse Open Eclipse and navigate to Window → Preferences. This opens the…
Google Docs comments are invaluable for collaborative work, but the web interface doesn’t provide a native way to print them in document margins. The most reliable approach is to export the document and use LibreOffice or Microsoft Word to handle the layout. Download the Document from Google Docs Open your Google Doc and go to…
Comments and tracked changes are essential features for collaborative document work in LibreOffice. Both ODT and DOCX/DOC formats preserve comments and revisions, but controlling how they appear in printed output requires specific configuration. Accessing the Print Comments Settings To print comments in the page margins: Open your document in LibreOffice Writer Go to File >…
The simplest way to install R on macOS is through Homebrew: brew install r If you don’t have Homebrew installed, install it first from https://brew.sh. Verify the installation by launching R from the terminal: R You should see the R version and prompt. To verify everything works, run a quick demo: demo(graphics) q() Type n…
Start by updating your package manager and installing R: sudo apt update sudo apt install r-base This installs the base R distribution from Ubuntu’s default repositories. For more details on R installation, see the dedicated R installation guide. Install RStudio Desktop Once R is installed, you can add RStudio Desktop as your local IDE. Download…
R is a language and environment for statistical computing and graphics. It’s free software under the GPL license and provides extensive statistical and graphical capabilities through numerous contributed packages. The R environment package is available in Ubuntu’s standard repositories. Install it with: sudo apt update sudo apt install r-base This installs r-base along with recommended…
DNF and YUM automatically download RPM packages and their dependencies during installation. If you need to build offline installation media, create local mirrors, or avoid repeated downloads across multiple systems, you’ll want to preserve those packages instead of letting them disappear from cache after installation. This is especially useful for: Building offline installation repositories Preparing…
Linux is a multi-user operating system where multiple users can run processes simultaneously. Groups provide a mechanism to efficiently manage permissions for collections of users without having to set individual permissions for each account. What are user groups? A user group is a collection of user accounts that can be assigned permissions as a unit….
Python 3.9 brought several substantial improvements over earlier versions. While it’s now past EOL as of October 2025, understanding its features provides context for migration planning and why the Python ecosystem shifted toward 3.10+. That said, if you’re maintaining legacy 3.9 code, these features remain relevant to your codebase. Dictionary Merge and Update Operators The…
Google shut down Feedburner’s management interface, leaving it in indefinite maintenance mode. While RSS remains a critical format for feed distribution across platforms like WordPress and other CMS software, you need an alternative service for feed management and subscriber tracking. follow.it is a solid Feedburner replacement that handles RSS feeds, subscriptions, and analytics. This guide…
Querying transaction details from a Hyperledger Fabric ledger is critical for auditing, compliance verification, and debugging chaincode behavior. The QSCC (Query System Chaincode) provides the GetTransactionByID function to retrieve complete transaction metadata including endorsements, read/write sets, and validation status. This guide uses Hyperledger Fabric 2.5+ on Ubuntu 24.04 LTS with the test-network from fabric-samples. Environment…
Hyperledger Fabric is a modular, enterprise-grade consortium blockchain platform. While its official documentation is comprehensive, deploying a test network from scratch requires configuring multiple dependencies and tools—a process that’s time-consuming for new users. This guide covers both automated and manual setup approaches to get a working Fabric network running quickly. Prerequisites You’ll need: Ubuntu 24.04…
When you need a specific Go version on Ubuntu, the default package manager often lags behind. Production systems like Kubernetes, Hyperledger Fabric, and other projects frequently require versions newer than what’s available in standard repositories. This guide covers system-level installation that allows multiple versions to coexist. Remove existing Go installations Start by cleaning up any…
View all virtual machines registered with VirtualBox: vboxmanage list vms Output example: “ubuntu-server” {a1b2c3d4-e5f6-7890-abcd-ef1234567890} “debian-test” {b2c3d4e5-f6a7-8901-bcde-f12345678901} “centos-prod” {d6c938d8-0bec-57f0-9fd3-8e395ba3d218} Each VM appears with its name and UUID. The UUID uniquely identifies the VM in VirtualBox’s database. List running VMs only See only active virtual machines: vboxmanage list runningvms This is useful when you have many VMs…
The StoneWall problem is a classic algorithmic challenge that tests your ability to recognize when a stack data structure enables a greedy O(N) solution. The Problem Given an array of wall heights, determine the minimum number of distinct stone blocks needed to construct that height profile. Each stone block can be placed multiple times at…
Insync is a third-party sync client that fills the gap left by Microsoft’s lack of native Linux support for OneDrive. It handles both personal OneDrive and OneDrive for Business accounts reliably and integrates cleanly with your desktop environment. Installation Debian/Ubuntu/Linux Mint sudo apt-key adv –keyserver keyserver.ubuntu.com –recv-keys ACCAF35C sudo add-apt-repository “deb http://apt.insync.io/debian $(lsb_release -cs) non-free…
Thunderbird’s built-in calendar support (Lightning) handles local calendars, but you need two extensions to sync with Exchange Online: TbSync — manages cloud account synchronization for contacts, calendars, and tasks Provider for Exchange ActiveSync — adds ActiveSync protocol support to TbSync Install both from Thunderbird’s Add-ons Manager: Open Thunderbird and go to Menu → Add-ons and…