.alias entry for more commands

Hi, I have more (three) scripts I would like to run as the root user. For that I have setup an entry in the .alias file of my normal user as follows: alias combo="su -c "/bin/scr1 && /bin/scr2 && /bin/scr3"" No surprise, but it doesn't work:( I attempted to increase the number of the " chars on many different ways;), but still no fruits. Please anyway knowing the trick? Thanks, Pelibali