My .bash_profile that I like to use

.bash_profile

### VISUAL TERMINAL SETTINGS
############################

# Configure prompt

EMOJIS=("🌮" "🍍" "🎉" "🚀")
DEFAULT_EMOJI=${EMOJIS[$RANDOM % ${#EMOJIS[@]} ]}

parse_git_branch() {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

# Format the terminal prompt as:
# "<username> - <current_directory> (<current_git_branch>) <random_favorite_emoji> "
export PS1="\u - \W\[\033[32m\]\$(parse_git_branch)\[\033[00m\] $DEFAULT_EMOJI  "

# Terminal syntax highlighting

export CLICOLOR=1

### SET PATH
############

export # etc.
export # etc.

### FUNCTIONS
#############

# List all processes running on a given port (e.g. "ps-by-port 3000")
ps-by-port() {
	lsof -n -i4TCP:"$1"
}