To install Zsh under Gentoo we need to emerge app-shells/zsh (Zsh itself) and app-shells/zsh-completion (Zsh completion scripts) packages.

	# emerge zsh zsh-completion

After installation Zsh seems to be very simple and rather limited in the area of functionality. To change this state several configuration fixes should be performed.

To enable famous Zsh tab-completion system we have to type the following commands:

% autoload -U compinit
% compinit

This is also a good idea to enable correction of the commands written under shell.

% setopt correctall

Our prompt may seem quite boring however we can fix it easily in several steps. At first we need to initialize advanced prompt support:

% autoload -U promptinit
% promptinit

Available prompts samples may be printed via prompt -p command. Now we can activate our favourite one (oliver for example):

% prompt oliver

This is good idea to enable these option as a Zsh defaults for our system. Possible way to achieve this is to write our settings in the /etc/zsh/zshrc script using our favourite text editor (nano or vim for example):

#!/bin/zsh

# completion
autoload -U compinit
compinit

# correction
setopt correctall

# prompt
autoload -U promptinit
promptinit
prompt oliver

The last thing we need to do is to set zshrc script as executable:

% chmod a+x /etc/zsh/zshrc