Sample bash_profile

bash_profile

# export PATH=$PATH:/usr/bin

if [ -f ~/.bash_colors ]; then
    source ~/.bash_colors
fi

## RBENV ##
eval "$(rbenv init -)"

## NVM ##
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

export PATH=/usr/local/bin:$PATH

export PYTHONPATH="/usr/local/Cellar/python/3.7.0/bin/python3:$PYTHONPATH"

## PS1 ##
## Shell Prompt ##
__prompt_command() {
    EXIT="$?"
    PS1=""

    if [ $EXIT -eq 0 ]; then
        PS1+="${green}[\!] "
    else
        PS1+="${red}[\!] "
    fi

    # If logged in via ssh shows the ip of the server
    if [ -n "$SSH_CLIENT" ]; then
        IFS=" " read -ra SERVER_IP <<< ${SSH_CONNECTION}
        PS1+="${yellow}("${SERVER_IP[2]}") "
    fi

    PS1+="${bold_purple}\W "

    # Add rbenv to prompt
    PS1+="${green}$(rbenv version | sed -e 's/ .*//') "

    # Check if inside git repo
    local git_status="$(git status -unormal 2>&1)"
    if ! [[ "$git_status" =~ not\ a\ git\ repo ]]; then
        # Parse the porcelain output of git status
        if [[ "$git_status" =~ nothing\ to\ commit ]]; then
            local Color_On=${green}
        elif [[ "$git_status" =~ nothing\ added\ to\ commit\ but\ untracked\ files\ present ]]; then
            local Color_On=${purple}
        else
            local Color_On=${red}
        fi

        if [[ "$git_status" =~ On\ branch\ ([^[:space:]]+) ]]; then
            branch=${BASH_REMATCH[1]}
        else
            # Detached HEAD. (branch=HEAD is a faster alternative.)
            branch="$(git describe --all --contains --abbrev=4 HEAD 2> /dev/null || echo HEAD)"
        fi

        # Add the result to prompt
        PS1+="${Color_On}[${branch}] "
    fi

    PS1+="${normal}\$ "
}

## Execute __prompt_command every time PS1 is printed ##
PROMPT_COMMAND=__prompt_command