Easy way to have ZSH on Mac OS High Sierra, a unix command line spectacular!

If you do not have ZSH installed on your machine, install them before.
Access to install ZSH https://github.com/robbyrussell/oh-my-zsh/wiki/Installing-ZSH

# http://ohmyz.sh/
$ sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

Plugins

1 - https://github.com/sindresorhus/pure
$ npm install --global pure-prompt

## Adds on the of file ~/.zshrc the content belhttps://github.com/sindresorhus/purelow
autoload -U promptinit; promptinit
prompt pure

2 - https://github.com/zsh-users/zsh-autosuggestions
$ brew install zsh-autosuggestions

## Adds on the of file ~/.zshrc the content bellow
source /usr/local/share/zsh-autosuggestions/zsh-autosuggestions.zsh

Done! Your config command line now is ~/.zshrc

# Errors appendix

prompt_pure_setup containing theme pure.

Maybe your nodejs was not installed or not found. Resolve this and try to run the install with npm again.