curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused

Installing, this may take a few minutes...
Please create a default UNIX user account. The username does not need to match your Windows username.
For more information visit: https://aka.ms/wslusers
Enter new UNIX username: lxwang
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
Installation successful!
To run a command as administrator (user "root"), use "sudo ".
See "man sudo_root" for details.

lxwang@NANO:~$ bash
To run a command as administrator (user "root"), use "sudo ".
See "man sudo_root" for details.

lxwang@NANO:~ sudo mv sources.list sources.list.bak
[sudo] password for lxwang:
lxwang@NANO:/etc/apt sudo apt-get update
E: Type 'pt' is not known on line 1 in source list /etc/apt/sources.list
E: The list of sources could not be read.
lxwang@NANO:/etc/apt cat /etc/apt/sources.list
pt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse

预发布软件源，不建议启用

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

lxwang@NANO:/etc/apt Q
Q: command not found
lxwang@NANO:/etc/apt
lxwang@NANO:/etc/apt cat /etc/apt/sources.list

默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse

预发布软件源，不建议启用

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

lxwang@NANO:/etc/apt bash
lxwang@NANO:/etc/apt sudo apt-get install zsh
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following package was automatically installed and is no longer required:
libfreetype6
Use 'sudo apt autoremove' to remove it.
The following additional packages will be installed:
zsh-common
Suggested packages:
zsh-doc
The following NEW packages will be installed:
zsh zsh-common
0 upgraded, 2 newly installed, 0 to remove and 143 not upgraded.
Need to get 4066 kB of archives.
After this operation, 15.2 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-updates/main amd64 zsh-common all 5.4.2-3ubuntu3.1 [3376 kB]
Get:2 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-updates/main amd64 zsh amd64 5.4.2-3ubuntu3.1 [690 kB]
Fetched 4066 kB in 23s (177 kB/s)
Selecting previously unselected package zsh-common.
(Reading database ... 28645 files and directories currently installed.)
Preparing to unpack .../zsh-common_5.4.2-3ubuntu3.1_all.deb ...
Unpacking zsh-common (5.4.2-3ubuntu3.1) ...
Selecting previously unselected package zsh.
Preparing to unpack .../zsh_5.4.2-3ubuntu3.1_amd64.deb ...
Unpacking zsh (5.4.2-3ubuntu3.1) ...
Setting up zsh-common (5.4.2-3ubuntu3.1) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Setting up zsh (5.4.2-3ubuntu3.1) ...
lxwang@NANO:~ sh -c " sh -c " sh -c " curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused
bash: syntax error near unexpected token `7'
lxwang@NANO:~(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused
lxwang@NANO:~(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
Cloning Oh My Zsh...
Cloning into '/home/lxwang/.oh-my-zsh'...
remote: Enumerating objects: 1135, done.
remote: Counting objects: 100% (1135/1135), done.
remote: Compressing objects: 100% (1100/1100), done.
remote: Total 1135 (delta 22), reused 943 (delta 17), pack-reused 0
Receiving objects: 100% (1135/1135), 738.47 KiB | 27.00 KiB/s, done.
Resolving deltas: 100% (22/22), done.
Checking out files: 100% (844/844), done.

Looking for an existing zsh config...
Using the Oh My Zsh template file and adding it to ~/.zshrc.

Time to change your default shell to zsh:
Do you want to change your default shell to zsh? [Y/n] y
Changing the shell...
Password:
Shell successfully changed to '/usr/bin/zsh'.

     __                                     __

____ / /_ ____ ___ __ __ ____ _____/ /_
/ __ / __ \ / __ `__ / / / / /_ / / / __
/ // / / / / / / / / / / // / / /(__ ) / / /
_// // // // //_, / //____// //
/____/ ....is now installed!

Please look over the ~/.zshrc file to select plugins, themes, and options.

p.s. Follow us on https://twitter.com/ohmyzsh

p.p.s. Get stickers, shirts, and coffee mugs at https://shop.planetargon.com/collections/oh-my-zsh

➜ ~ ls
➜ ~ ls
➜ ~ ls
➜ ~
➜ ~