My .bashrc for Ubuntu 18.04

.bashrc

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac


shopt -s checkwinsize
shopt -s histappend
HISTCONTROL=ignoreboth
HISTSIZE=1000
HISTFILESIZE=2000


# Set PS1
case "$TERM" in
    xterm-color|*-256color) 
        PS1='\[\033[0;32m\]\[\033[0m\033[0;32m\]\u\[\033[0;36m\] @ \[\033[0;36m\]\h \[\033[0;33m\]\w\[\033[0;96m\]$(__git_ps1)\n\[\033[0;32m\]└─\[\033[0m\033[0;32m\] \$\[\033[0m\033[0;32m\] ▶\[\033[0m\] '
    ;;
    *)
        PS1="\u@\h:\w\$ "
    ;;
esac


# Set terminal title
case "$TERM" in
    xterm*|rxvt*)
        PS1="\[\e]0;\u@\h: \w\a\]$PS1"
    ;;
esac


# Make less more friendly for non-text input files,
[[ -x /usr/bin/lesspipe ]] && eval "$(SHELL=/bin/sh lesspipe)"


# Alias definitions.
if [[ -f ~/.bash_aliases ]]; then
    . ~/.bash_aliases
fi


# Enable color support of ls and also add handy aliases
if [[ -x /usr/bin/dircolors ]]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi


# Enable programmable completion features
if ! shopt -oq posix; then
  if [[ -f /usr/share/bash-completion/bash_completion ]]; then
    . /usr/share/bash-completion/bash_completion
  elif [[ -f /etc/bash_completion ]]; then
    . /etc/bash_completion
  fi
fi