rustup-init.sh

rustup-init.sh is a command line tool used to install and manage Rust programming language toolchains. It is the recommended way to get started with Rust development. The tool is available for different platforms like Linux, macOS, and Windows.

When executed, rustup-init.sh sets up the rustup tool, which is a general-purpose installer for managing Rust toolchains. It allows developers to install multiple Rust toolchains simultaneously, switch between them, and update them easily.

The rustup-init.sh script helps to manage different profiles or "channels" of Rust software releases. These channels include "stable," "beta," and "nightly." Stable releases are recommended for most developers, while beta and nightly releases provide access to experimental features and bleeding-edge improvements.

During installation, rustup-init.sh automatically adds the necessary directories to the system's PATH to ensure that Rust commands can be executed from anywhere in the command line.

The script also allows developers to configure default toolchains and override them on a per-directory basis. This gives developers the flexibility to work on different projects with different toolchain requirements.

Rustup-init.sh supports offline installation, allowing developers to install Rust toolchains and dependencies without an internet connection. This is particularly useful in restricted environments or for offline development.

The tool also provides command line utilities to manage installed toolchains, such as rustup update to update all installed toolchains, rustup default to set the default toolchain, and rustup override to set the toolchain for a specific directory.

Rustup-init.sh is actively maintained and frequently updated to ensure compatibility with the latest Rust releases. Developers can easily update the rustup tool itself using the command rustup self update.

Overall, rustup-init.sh simplifies the process of installing and managing multiple Rust toolchains, allowing developers to quickly switch between different Rust profiles, keep their toolchain up-to-date, and smoothly transition between stable, beta, and nightly releases.