Bash Rc file of my ubuntu

# PS1="\w \n $ "
function compile {
        # compiler flags
        # g++ -Wall -Wextra -Wshadow -D_GLIBCXX_ASSERTIONS -DDEBUG -ggdb3 -fmax-errors=2 -o $1{,.cpp}
        let="g++ -Wall -Wextra -std=c++17 -O2 -Wshadow -Wformat=2 -Wfloat-equal -Wconversion -Wlogical-op -Wshift-overflow=2 -Wduplicated-cond -Wcast-qual -Wcast-align -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC -D_FORTIFY_SOURCE=2 -fsanitize=address -fsanitize=undefined -fno-sanitize-recover -fstack-protector -ggdb3 -fmax-errors=2"
        $let -o $1{,.cpp}
}
orange=$(tput setaf 166);
yellow=$(tput setaf 228);
green=$(tput setaf 71);
white=$(tput setaf 15);
bold=$(tput bold);
reset=$(tput sgr0);

PS1="\[${bold}\]\n";
PS1+="\[${orange}\]\u"; #username
PS1+="\[${white}\]@";
PS1+="\[${yellow}\]\h"; #host
PS1+="\[${white}\] in ";
PS1+="\[${green}\]\w"; #working directory
PS1+="\[${white}\]\n\$ \[${reset}\]";
export PS1;