Git

Git is the distributed version control system Linus Torvalds wrote in 2005 to replace BitKeeper for Linux kernel development. Junio Hamano has been lead maintainer since July 2005; the project is a fiscally-sponsored member of the Software Freedom Conservancy (since December 2010). Licensed GPLv2. Current release: 2.55.0 (June 29, 2026), which enabled Rust support by default and added a `git history fixup` command. Every commit is content-addressed into a Merkle DAG, giving full offline history and cheap local branching — no server round-trip needed for commits, diffs, or log. Adoption: the overwhelming majority of developers name it their primary VCS — Stack Overflow's developer surveys have shown Git usage in the low-to-mid 90% range for years, though the precise '93.87%' figure that circulates online traces back to SEO stat-aggregator sites rather than a number Stack Overflow itself has published. GitHub alone hosts 630M+ repositories across 180M+ developers (GitHub Octoverse 2025, confirmed against GitHub's own report). Current version/status: 2.55.0 (released June 29, 2026). License: GNU General Public License v2 (GPLv2), with some components (e.g. the bundled xdiff library and compat/regex code) under LGPL v2.1. Pricing: Free and open source — no license fees, no paid tier; hosting/collaboration platforms built on top of Git (GitHub, GitLab, Bitbucket) have their own sepa

Also known as: version-control, github, gitlab

🧊Why learn Git?

Pick Git for anything from solo scripts to Linux-kernel-scale codebases: its branching model and fully offline commits are unmatched for distributed teams and messy parallel-merge workflows. Skip it if your org needs native large-binary/monorepo handling at Google scale without bolting on LFS or partial-clone tricks — Perforce Helix Core still wins that fight outright. Honest weakness the community itself keeps flagging: `checkout` still does three unrelated jobs (switch branches, restore files, create branches), and even though `git switch`/`git restore` were added in 2.23 back in 2019 to split it apart, most tutorials and muscle memory still teach the old, overloaded verb. Known weakness: CLI verb overload — `git checkout` conflates branch-switching, file-restoring, and branch-creation into one command; `git switch`/`git restore` were added in v2.23 (2019) to fix this but haven't displaced the old habits or most tutorials.

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Compare Git

Git vs Mercurial→Git vs Perforce→Git vs Subversion→

Learning Resources

📚

Pro Git (2nd edition, free online book)

book

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📄

Git Reference Documentation

docs

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📝

Learn Git Branching (interactive tutorial)

Related Tools

Bitbucket Git Lfs Github Actions

Alternatives to Git

Mercurial Perforce Subversion

Other Version Control Systems

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.env

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.htaccess

.htaccess (Hypertext Access) is a configuration file used on Apache web servers to control directory-level settings, such as URL redirection, access control, and performance optimizations. It allows developers to override global server configurations for specific directories without modifying the main server configuration files. This file is commonly used for tasks like password protection, custom error pages, and enabling features like mod_rewrite for URL manipulation.

.htaccess

.htaccess (Hypertext Access) is a configuration file used on Apache web servers to control directory-level settings, such as URL redirection, access control, and performance optimizations. It allows developers to override global server configurations for specific directories without modifying the main server configuration files. This file is commonly used for tasks like enabling HTTPS, blocking IP addresses, or setting custom error pages.

.htaccess Redirect

.htaccess redirect is a server-side configuration technique using the .htaccess file on Apache web servers to manage URL redirections, such as redirecting old URLs to new ones, enforcing HTTPS, or handling errors like 404 pages. It operates through directives like Redirect, RedirectMatch, and RewriteRule, allowing developers to control traffic flow without modifying server-wide settings. This method is essential for SEO, user experience, and maintaining link integrity during website migrations or updates.

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.NET Profiling Tools

.NET profiling tools are software utilities used to analyze the performance, memory usage, and behavior of .NET applications during execution. They help developers identify bottlenecks, memory leaks, and inefficiencies by collecting data on CPU usage, garbage collection, thread activity, and method execution times. These tools are essential for optimizing .NET applications to ensure they run efficiently and reliably in production environments.