zero=0
menu=1
break=echo
while [ $menu -eq 1 ];do
    clear
    echo Please sign in...
    read -p "Username: " usrname
    read -p "Password: " passwrd

        #make a command that will find password in second line and set it as "$password", then test it with (userinput:) "$passwrd" currect then continue
        #the textfile/file will look something like:

        #Username
        #Password

    if [ "$passwrd" -eq "$password" ];then
        break=break
    fi
$break
done