Update cheatsheets

rustup-init.sh

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# rustup-init.sh
+
+> Script to install `rustup` and the Rust toolchain.
+> More information: <https://forge.rust-lang.org/infra/other-installation-methods.html#rustup>.
+
+- Download and run `rustup-init` to install `rustup` and the default Rust toolchain:
+
+`curl https://sh.rustup.rs -sSf | sh -s`
+
+- Download and run `rustup-init` and pass arguments to it:
+
+`curl https://sh.rustup.rs -sSf | sh -s -- {{arguments}}`
+
+- Run `rustup-init` and specify additional components or targets to install:
+
+`rustup-init.sh --target {{target}} --component {{component}}`
+
+- Run `rustup-init` and specify the default toolchain to install:
+
+`rustup-init.sh --default-toolchain {{toolchain}}`
+
+- Run `rustup-init` and do not install any toolchain:
+
+`rustup-init.sh --default-toolchain {{none}}`
+
+- Run `rustup-init` and specify an installation profile:
+
+`rustup-init.sh --profile {{minimal|default|complete}}`
+
+- Run `rustup-init` without asking for confirmation:
+
+`rustup-init.sh -y`