$ brew install zsh
$ chsh -s /usr/local/bin/zsh

$ apt-get install zsh
$ chsh -s `which zsh`

$ ~/.zshrc #

$ ls **/*.txt       # extended globbing
$ ls *.[^oh]        # exclude
$ ls run<200-300>   # range
$ ls *.c~bar.c      # exclude file

$ cd
chapters/  docs/      images/

$ cd /u/l/b/ <TAB>
$ cd /usr/local/bin/

$ cd /usr/local/bin
$ cd bin share
/usr/local/share

alias -s md="code"

./README.md

$ brew install antigen

source /usr/local/share/antigen/antigen.zsh

antigen init ~/.antigenrc

# Load the oh-my-zsh's library.
antigen use oh-my-zsh

# Bundles from the default repo (robbyrussell's oh-my-zsh).
antigen bundle autojump
antigen bundle thefuck
antigen bundle git
antigen bundle web-search

# Syntax highlighting bundle.
antigen bundle zsh-users/zsh-syntax-highlighting

# Load the theme.
antigen theme robbyrussell

# Load bundle from https://github.com/....
antigen bundle djui/alias-tips

# Tell antigen that you're done and activate completion
antigen apply

$ ls -
-1  -- single column output
-A  -- list all except . and ..
-B  -- print octal escapes for control characters
-C  -- list entries in columns sorted vertically
....

ln -s 2.4.11 latest
-F      -- remove existing destination directories
-f      -- remove existing destination files
....

$ brew tap caskroom/fonts
$ brew cask install font-hack-nerd-font
$ antigen theme bhilburn/powerlevel9k

POWERLEVEL9K_INSTALLATION_PATH=$HOME/.antigen/bundles/bhilburn/powerlevel9k/powerlevel9k.zsh-theme

for file in ~/.zshrc.d/*.sh;
do
  source $file
done

$ ls ~/.zshrc.d/
advanced-ssh.sh  env.sh           ipt.sh           macosx.test      svn.sh
aliases.sh       golang.sh        lmfr.sh          powerlevel9K.sh  zsh-highlight.sh

antigem bundle djui/alias-tips

$ git commit -am
Alias tip: g cam