zsh ve oh-my-zsh

sudo apt-get update

sudo apt-get install zsh

sudo apt-get install git-core

After this we can install oh-my-zsh

sudo curl -L http://install.ohmyz.sh | sh

If we get an error which says 'Password: chsh: PAM: Authentication failure ' we should do these:

rm -fr .oh-my-zsh/

curl -L http://install.ohmyz.sh > install.sh

sh install.sh

Default theme is robbyrussel.We should change this to agnoster by like this:

~/.zshrc

ZSH_THEME="robbyrussell" #(change this default one)
ZSH_THEME="agnoster" # (to this. this is one of the fancy one)

Open a new terminal window and it should look like