WSL安装及基本配置指南

前言安装勾选适用于Linux的Windows子系统wsl --install进行安装输入用户名和密码查看版本号换源版本号的选择（不要无脑复制）进入网址http://archive.ubuntu.com/ubuntu/pool/main/c/ca-certificates/

vim的基本配置终端启动wsl为什么要用终端启动wsl

前言

这里安装的是WSL，而不是WSL2，如果想升级，参考其余资料即可。对于一般用户来说，WSL完全够用。

安装

勾选适用于Linux的Windows子系统

控制面板-程序-启用或关闭Windows功能-适用于Linux的Windows子系统，然后按照提示重启电脑

wsl --install进行安装

我安装的是20.04 LTS版本的（-d指明版本号）

wsl --install -d Ubuntu-20.04

输入用户名和密码

安装完成后，系统会提示输入用户名和密码，没有必要和Windows下的用户名保持一致

查看版本号

查看WSL版本号，嗯，是1，不是2

换源

这里选择清华源，不过有几点需要注意

版本号的选择（不要无脑复制）

备份文件：cp /etc/apt/sources.list /etc/apt/sources.list.bak sudo vim /etc/apt/sources.list，将上述内容粘贴进去

进入网址http://archive.ubuntu.com/ubuntu/pool/main/c/ca-certificates/

找到对应的20.04文件 终端执行以下命令：

cd /tmp

wget http://archive.ubuntu.com/ubuntu/pool/main/c/ca-certificates/ca-certificates_20211016~20.04.1_all.deb

sudo dpkg -i ./ca-certificates_20211016~20.04.1_all.deb

然后执行sudo apt-get update 和 sudo apt-get upgrade即可

vim的基本配置

终端启动wsl

在Windows Terminal（也就是终端）中启动wsl，之后cd ~，进入~目录

然后 touch .vimrc，创建vim的配置文件。然后vim .vimrc ，按下i键，然后删除内容（记得先备份一个，防止之后想要恢复）。屏幕空白后，将如下内容粘贴到文件中（参考 missing semester）

" Comments in Vimscript start with a `"`.

" If you open this file in Vim, it'll be syntax highlighted for you.

" Vim is based on Vi. Setting `nocompatible` switches from the default

" Vi-compatibility mode and enables useful Vim functionality. This

" configuration option turns out not to be necessary for the file named

" '~/.vimrc', because Vim automatically enters nocompatible mode if that file

" is present. But we're including it here just in case this config file is

" loaded some other way (e.g. saved as `foo`, and then Vim started with

" `vim -u foo`).

set nocompatible

" Turn on syntax highlighting.

syntax on

" Disable the default Vim startup message.

set shortmess+=I

" Show line numbers.

set number

" This enables relative line numbering mode. With both number and

" relativenumber enabled, the current line shows the true line number, while

" all other lines (above and below) are numbered relative to the current line.

" This is useful because you can tell, at a glance, what count is needed to

" jump up or down to a particular line, by {count}k to go up or {count}j to go

" down.

set relativenumber

" Always show the status line at the bottom, even if you only have one window open.

set laststatus=2

" The backspace key has slightly unintuitive behavior by default. For example,

" by default, you can't backspace before the insertion point set with 'i'.

" This configuration makes backspace behave more reasonably, in that you can

" backspace over anything.

set backspace=indent,eol,start

" By default, Vim doesn't let you hide a buffer (i.e. have a buffer that isn't

" shown in any window) that has unsaved changes. This is to prevent you from "

" forgetting about unsaved changes and then quitting e.g. via `:qa!`. We find

" hidden buffers helpful enough to disable this protection. See `:help hidden`

" for more information on this.

set hidden

" This setting makes search case-insensitive when all characters in the string

" being searched are lowercase. However, the search becomes case-sensitive if

" it contains any capital letters. This makes searching more convenient.

set ignorecase

set smartcase

" Enable searching as you type, rather than waiting till you press enter.

set incsearch

" Unbind some useless/annoying default key bindings.

nmap Q " 'Q' in normal mode enters Ex mode. You almost never want this.

" Disable audible bell because it's annoying.

set noerrorbells visualbell t_vb=

" Enable mouse support. You should avoid relying on this too much, but it can

" sometimes be convenient.

set mouse+=a

" Try to prevent bad habits like using the arrow keys for movement. This is

" not the only possible bad habit. For example, holding down the h/j/k/l keys

" for movement, rather than using more efficient movement commands, is also a

" bad habit. The former is enforceable through a .vimrc, while we don't know

" how to prevent the latter.

" Do this in normal mode...

nnoremap :echoe "Use h"

nnoremap :echoe "Use l"

nnoremap :echoe "Use k"

nnoremap :echoe "Use j"

" ...and in insert mode

inoremap :echoe "Use h"

inoremap :echoe "Use l"

inoremap :echoe "Use k"

inoremap :echoe "Use j"

"关闭按键错误提醒

"set vb t_vb=

"au GuiEnter * set t_vb=

"解决中文乱码

set nu

set fencs=utf-8,gbk,utf-16,utf-32,ucs-bom

之后就:wq保存修改并退出，vim的界面就变得极其美观了。

为什么要用终端启动wsl

这就要牵扯到了一个坑，如果你在开始界面输入Ubuntu，然后点击这个图标，会进入一个黑框框

如果此时你用vim编辑一个中文文件，就会发现汉字重影的问题，具体阐释就是光标左右移动时，下方的汉字会重叠在一起。可能原因是汉字和英文的宽度不同，导致vim的移动距离出现偏差。

具体图片如下 简单来说，直接启动wsl（以及通过git bash启动wsl）会让vim出现问题，但是从终端启动wsl却不会出现这个问题，汉字不会出现重影，并且界面简洁美观。

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