Set title for the terminal immediately

.bashrc-set-title

set-title() {
    if [[ -z "$PS1_BAK" ]]; then
        PS1_BAK=$PS1
    fi

    # Change the title immediately using printf
    printf "\033]0;%s\007" "$1"

    # Update PS1 for future prompts
    TITLE="\[\e]2;$1\a\]"
    PS1=${PS1_BAK}${TITLE}
}

# Usage:
# set-title "New terminal title" && sleep 5