Ubuntuでやる方法
結構~/.zshrcが重要な気がする

curl -sL --proto-redir -all,https https://raw.githubusercontent.com/zplug/installer/master/installer.zsh | zsh

~/.zshrcを書く

~/.zshrc

# zplug
source ~/.zplug/init.zsh
zplug 'zplug/zplug', hook-build:'zplug --self-manage'
# theme (https://github.com/sindresorhus/pure#zplug)　好みのスキーマをいれてくだされ。
zplug "mafredri/zsh-async"
zplug "sindresorhus/pure"
# 構文のハイライト(https://github.com/zsh-users/zsh-syntax-highlighting)
zplug "zsh-users/zsh-syntax-highlighting"
# history関係
zplug "zsh-users/zsh-history-substring-search"
# タイプ補完
zplug "zsh-users/zsh-autosuggestions"
zplug "zsh-users/zsh-completions"
zplug "chrissicool/zsh-256color"
# Install plugins if there are plugins that have not been installed
if ! zplug check --verbose; then
  printf "Install? [y/N]: "
  if read -q; then
    echo; zplug install
  fi
fi
# Then, source plugins and add commands to $PATH
zplug load

zstyle ':completion:*:default' menu select=2
source ~/.zsh_aliases

zshにログイン

$ zsh

zshを通常のシェルに

$ chsh -s /bin/zsh

再起動