You will need to navigate to that location of the specific install.sh file or use the entire path in the command.  For example, if you have downloaded a program in /root/downloads/program1 and you enter shell and shell says  #root  then you are not in the correct dir yet.  You would need to enter:
cd /root/downloads/program1
(change directory command) then if that is indeed the location of the install.sh file then enter:
install.sh

Alternatively, you could enter the entire command from ANY location like this:
/root/downloads/program1 install.sh

For other common SHELL commands see here.

Actually the command would be "cd /root"
Still get the permission denied error?

And if you are "su-ing" to root try this command:


su -l root


first off, do you own the root account??

second, you cant install anything unless you log on as root

third if you are root, and access is denied, change the folder permissions

Just a friendly note: you should never log in as root, you should always su to root as your normal user. Windows is where it is today with virii and spyware because the normal use is root...

Good point sarkek.  I usually don\'t SU, but I know I should.  I guess sometimes I get too lazy about that.  Most newbies aren\'t going to know what you mean by SU\'ing to root.  I know it is easy, but maybe someone can post a how-to on that?

Su\'ing (switch user, super user) basically allows you to run as another user from "inside" another logged in session. If you are logged in as your normal user (please tell me you are not running as root!), you can open a terminal and type this:
"su" (without the quotes), hit the enter key, then type the root password for your system. From this terminal, you may now run commands as root.

You must always be careful when running as root, because you have complete control over your system, and can accidentally delete things, or break something.

Running with root privileges this way kind of minimizes the danger your system is exposed to, because the entire session is not run as the root user.

Ubuntu throws a wrench in the works by using the "sudo" command. To open a root session in Ubuntu, open a terminal then type "sudo" (without the quotes), followed by the command you wish to run as root. The system will then ask for a password, but it is YOUR password. Personally, I don\'t find this  very secure, but that\'s just my opinion. Doing it this way, there is only one password to be compromised, instead of two.

Anyway, that\'s a short blurb on "su". The security of GNU/Linux is much improved over that of Windows, simply by running as your normal user, and not as root. Windows is in the horrible security state it is in today, because the normal Windows user is the administrator. As a GNU/Linux user, you MUST always perform admin tasks by su\'ing to root, and if you stick to this rule, your system will be much happier!