linux 安装 rust-lang

自动安装

apt install rust

这个是不带cargo/rustup那些的

手动安装

1. 安装rustup

	  wget https://github.com/rust-lang-nursery/rustup.rs/archive/1.14.0.tar.gz
	  tar xzvf 1.14.0.tar.gz
	  cd rustup.rs-1.14.0
	 ./rustup-init.sh

需。。如果半天不动，手动去下载如下安装文件。。

  wget https://static.rust-lang.org/rustup/dist/x86_64-unknown-linux-gnu/rustup-init
  vim rustup-init.sh

注释掉103行的下载步骤。手动指定刚刚下载的安装文件rustup-init

		  #    ensure downloader "$_url" "$_file"
         	_file="/root/download/rustup.rs-1.14.0/rustup-init"

注释掉132行左右的rm，免得被误删。。

 #ignore rm "$_file"
 #ignore rmdir "$_dir"

保存退出
//加上中科大镜像

vim /etc/profile
export RUSTUP_DIST_SERVER=https://mirrors.ustc.edu.cn/rust-static
export RUSTUP_UPDATE_ROOT=https://mirrors.ustc.edu.cn/rust-static/rustup

md ~/.cargo && vim ~/.cargo/config

[source.crates-io]
registry="https://github.com/rust-lang/crates.io-index"
replace-with='ustc'
[source.ustc]
registry='git://mirrors.ustc.edu.cn/crates.io-index'

./rustup-init.sh -y
这时候无需就会自动安装了。
$ ./rustup-init.sh -y
info: downloading installer

info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
info: latest update on 2018-09-25, rust version 1.29.1 (b801ae664 2018-09-20)
info: downloading component 'rustc'
 69.7 MiB /  69.7 MiB (100 %) 528.0 KiB/s ETA:   0 s                
info: downloading component 'rust-std'
 51.0 MiB /  51.0 MiB (100 %) 528.0 KiB/s ETA:   0 s                
info: downloading component 'cargo'
  5.0 MiB /   5.0 MiB (100 %) 528.0 KiB/s ETA:   0 s                
info: downloading component 'rust-docs'
  8.2 MiB /   8.2 MiB (100 %) 524.8 KiB/s ETA:   0 s                
info: installing component 'rustc'
info: installing component 'rust-std'
info: installing component 'cargo'
info: installing component 'rust-docs'
info: default toolchain set to 'stable'

  stable installed - rustc 1.29.1 (b801ae664 2018-09-20)


Rust is installed now. Great!

To get started you need Cargo's bin directory ($HOME/.cargo/bin) in your PATH 
environment variable. Next time you log in this will be done automatically.

To configure your current shell run source $HOME/.cargo/env

设置环境变量

source $HOME/.cargo/env

2. 更新

 cargo update
rustup self update

$ rustup update
info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
info: checking for self-updates

 stable-x86_64-unknown-linux-gnu unchanged - rustc 1.29.1 (b801ae664 2018-09-20)

root at debian in ~/download/rustup.rs-1.14.0 
$ cargo update       
    Updating registry `git://mirrors.ustc.edu.cn/crates.io-index`
    Updating curl-sys v0.4.11 -> v0.4.12                                                                                                                                                       
    Updating digest v0.7.5 -> v0.7.6
    Updating encoding_rs v0.8.6 -> v0.8.7
    Updating httparse v1.3.2 -> v1.3.3
    Updating lazycell v1.1.0 -> v1.2.0
    Updating libflate v0.1.16 -> v0.1.18
    Updating libz-sys v1.0.22 -> v1.0.23
    Updating lock_api v0.1.3 -> v0.1.4
    Updating schannel v0.1.13 -> v0.1.14
    Updating serde_json v1.0.27 -> v1.0.31
    Updating syn v0.15.4 -> v0.15.6
    Updating tar v0.4.16 -> v0.4.17
    Updating tokio v0.1.8 -> v0.1.11
    Updating tokio-codec v0.1.0 -> v0.1.1
    Updating tokio-current-thread v0.1.1 -> v0.1.3
    Updating tokio-executor v0.1.4 -> v0.1.5
    Updating tokio-io v0.1.8 -> v0.1.9
    Updating tokio-reactor v0.1.5 -> v0.1.6
    Updating tokio-tcp v0.1.1 -> v0.1.2
    Updating tokio-threadpool v0.1.6 -> v0.1.7
    Updating tokio-timer v0.2.6 -> v0.2.7
    Updating tokio-uds v0.2.1 -> v0.2.2
    Updating toml v0.4.6 -> v0.4.7
    Updating version_check v0.1.4 -> v0.1.5
    Updating winapi v0.3.5 -> v0.3.6

安装toolchain

rustup toolchain install nightly-x86_64-unknown-linux-gnu
rustup toolchain install nightly
rustup default nightly

查看toolchain

# rustup toolchain list
stable-x86_64-unknown-linux-gnu
nightly-x86_64-unknown-linux-gnu (default)

安装插件。。

rustup component add rls
rustup component add rust-src
rustup component add rust-analysis

hello world

vim hello.rs  

fn main(){
    let s="hi";
    println!{"{}",s};
}

# rustc hello.rs
# ./hello
hi