Add a cool 😎 prompt to your shell (for bash)

.bashrc

# Add this snippet to your .bashrc instead of your normal prompt (PS1) setting.

# Customize the line below further with your favorite smilies
# 😎 🙂 😊 😢 🙁 🙃
PS1='$(test $? -eq 0 && echo "\[\033[0;32m\]😎" || echo "\[\033[0;1;31m\]😢")\[\033[0m\] \W\$ '

# Set window title
case "$TERM" in
        xterm*)
                # see also man xterm(1) - "Window and Icon Titles"
                PS1='\[\033]2;\W\a\]'$PS1
                ;;
        screen*)
                # see also man screen(1) - "TITLES (naming windows)"
                PS1='\[\033k\W\033\\\]'$PS1
                ;;
esac

## Fin! ##

This the most important tool in DevOps.