Beer in my terminal prompt on Fridays

bash.sh

# The following code goes in your ~/.profile
#
# This propmpt shows a beer when you launch a Terminal window on a Fridays. 
# It checks every time you get a new prompt. A minute after 11:59M on a
# Thursday, if you press enter, it will add beer to the prompt. A minute
# after 11:59 PM on a Friday, no more beer.
#
# This is for terminals that use the Bash shell, which was the default for
# MacOS previous to Catalina.

beer() {
  if [[ $(date +%u) -eq 5 ]]
    then
      printf "🍺  " # two spaces at the end because printing emoji in Bash is weird
    fi
}

export PS1="\h: \w \u$ $(beer)"

zsh.sh

# The following code goes in your ~/.zshrc
#
# This propmpt shows a beer when you launch a Terminal window on a Fridays.
# It checks every time you get a new prompt. A minute after 11:59M on a
# Thursday, if you press enter, it will add beer to the prompt. A minute
# after 11:59 PM on a Friday, no more beer.
#
# As of MacOS Catalina, Zsh is the default shell for terminals. This uses
# the default prompt as found in /etc/zshrc as the basis for the prompt.

beer() {
  if [[ $(date +%u) -eq 5 ]]
    then
      printf "🍺 "
    fi
}
export PS1="%n@%m %1~ %# $(beer)"