You can just add something like (\\!) in your PS1 and get just that. PS1="(\\!) \[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ " as a full w

You can just add something like (\\!) in your PS1 and get just that. PS1="(\\!) \[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ " as a full working example