Linux and Config Question

First of all,you need proxy to get all the items

If your add-apt-repository command cann't work,you can try to cut down ipv6 which uses sudo sysctl net.ipv6.conf.all.disable_ipv6=1;or use proxy in shell( if your proxy tool is clash,use export http_proxy=http://127.0.0.1:7890 and export https_proxy=$http_proxy)

Linux useful tips

1. if you use clash to proxy http,firfox can work successfully,but google chrome can't, you can install extension called SwitchyOmega
2. if you use sudo apt upgrade but error report that "无法解析xxx",try to modify the DNS

   sudo vim /etc/systemd/resolved.conf

Then ,use the following contents

#  This file is part of systemd.
# 
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.
#
# Entries in this file show the compile time defaults.
# You can change settings by editing this file.
# Defaults can be restored by simply deleting this file.
#
# See resolved.conf(5) for details
[Resolve]
DNS= 114.114.114.114
DNS= 8.8.8.8
#FallbackDNS=
#Domains=
#LLMNR=no
#MulticastDNS=no
#DNSSEC=no
#DNSOverTLS=no
#Cache=no-negative
#DNSStubListener=yes
#ReadEtcHosts=yes

In the end,restart the service:

systemctl restart systemd-resolved 
systemctl enable systemd-resolved

vim Plug Question

First of all , update your neovim to insure that your neovim >= 0.9.1 (in Ubuntu ,use sudo add-apt-repository ppa:neovim-ppa/stable)

Then,after Plugin installed,Do :checkhealth

1. vim-hexokinase need golang installed if your nvim report need run make hexokinase in the root, make sure that golang has been installed,and do it.

2. coc.nvim need nodejs which needs >= 14.14 and npm(if use source code to install),make sure that nodejs has been installed

   use CocList marketplace can manage all the coc Plugin

3. nvim treesitter need neovim >= 0.9.1 (in ubuntu23.04 apt package,apt install neovim only get the neovim 0.7.1,so that you need add repository to get the neovim latest

4. if your vim-hexokinase Error: vim-hexokinase needs updating. Run make hexokinase in project root. See :h hexokinase-installation for more info.,then you should remove the plug folder,run the PlugInstall in vim command mode,at the root of this plugin, run make hexokinse

Useful but forgetfull

1. to rename a varible use <leader> rn (coc-rename)
2. to open terminal use 'space /'
3. to search the string under cursor use '*' (nvim-hlslens)
4. to use multi cursor c-m
5. to apply coc-completion use c-n to select ,c-e to accept

alacritty Config

1. Opacity need picom,not compton

Ranger Config

1. Ranger has compress command,see config to get it

i3-wm config

1. This config has used the i3-theme which contains rofi(which need installing manually or install i3-theme)