My whole bash profile, working in darwin kernel 16.5.0, minus some api keys of course

.bash_profile

# # echo is like puts for bash (bash is the program running in your terminal)
# echo "Loading ~/.bash_profile a shell script that runs in every new terminal you open"

# # $VARIABLE will render before the rest of the command is executed
# echo "Logged in as $USER at $(hostname)"

# Load RVM into a shell session *as a function*
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"
# Path for RVM
test -d "$HOME/.rvm/bin" && PATH="$PATH:$HOME/.rvm/bin"

# Rbenv autocomplete and shims
if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi
# Path for RBENV
test -d "$HOME/.rbenv/" && PATH="$HOME/.rbenv/bin:$PATH"

# Path changes are made non-destructive with PAqTH=new_path;$PATH   This is like A=A+B so we preserve the old path

# Path order matters, putting /usr/local/bin before /usr/bin
# ensures brew programs will be seen and used before another program
# of the same name is called

# Path for brew
test -d /usr/local/bin && export PATH="/usr/local/bin:/usr/local/sbin:~/bin:$PATH"
# Path for Heroku
test -d /usr/local/heroku/ && export PATH="/usr/local/heroku/bin:$PATH"
# Path for npm
export PATH="$HOME/.npm-packages/bin:$PATH"

# Load git completions
git_completion_script=/usr/local/etc/bash_completion.d/git-completion.bash
test -s $git_completion_script && source $git_completion_script

# A more colorful prompt
# \[\e[0m\] resets the color to default color
c_reset='\[\e[0m\]'
#  \e[0;31m\ sets the color to red
c_path='\[\e[0;31m\]'
# \e[0;32m\ sets the color to green
c_git_clean='\[\e[0;32m\]'
# \e[0;31m\ sets the color to red
c_git_dirty='\[\e[0;31m\]'

# PS1 is the variable for the prompt you see everytime you hit enter
if [ $OSTYPE == 'darwin16' ] && ! [ $ITERM_SESSION_ID ]
then
  PROMPT_COMMAND=$PROMPT_COMMAND'; PS1="${c_path}\W${c_reset}$(git_prompt) "'
else
  PROMPT_COMMAND=$PROMPT_COMMAND' PS1="${c_path}\W${c_reset}$(git_prompt) "'
fi

# determines if the git branch you are on is clean or dirty
git_prompt ()
{
  # Is this a git directory?
  if ! git rev-parse --git-dir > /dev/null 2>&1; then
    return 0
  fi
  # Grab working branch name
  git_branch=$(git branch 2>/dev/null| sed -n '/^\*/s/^\* //p')
  # Clean or dirty branch
  if git diff --quiet 2>/dev/null >&2; then
    git_color="${c_git_clean}"
  else
    git_color=${c_git_dirty}
  fi
  echo " [$git_color$git_branch${c_reset}]"
}

# Colors ls should use for folders, files, symlinks etc, see `man ls` and
# search for LSCOLORS
export LSCOLORS=ExGxFxdxCxDxDxaccxaeex
# Force ls to use colors (G) and use humanized file sizes (h)
alias ls='ls -Gh'

# Force grep to always use the color option and show line numbers
export GREP_OPTIONS='--color=always'

# Set sublime as the default editor
which -s subl && export EDITOR="subl --wait"

# Useful aliases

alias e="subl"
alias be="bundle exec"