Bashscripts.org

Hello everyone,

I'm a complete newbie to bash scripting, and im trying to figure out how i can check for updates using apt-get commands and use it in conky system monitor. So far this is what i've found from a site.



The apt-get --simulate dist-upgrade returns the following:



The above code works, but the problem is i can do apt-get only as root. Is there any way to do su inside the script?

What i would like for it to to do is output is just "x updates available" read from "0 upgrade" in this line:



or if no updates output "No updates available".

If anyone can write this script or suggest improvement to the above that would be greatly appreciated.

Thanks

why not "apt-get install sudo" ?

I'm using PCLinuxOS and it is setup to use su instead of sudo. The problem is when i do su it asks me for a password and i don't want that. I just want it to execute it without the password so conky can use its output

for security reasons there is no way to use su without password (only root can).
but there is a way to do that. u can use ssh!
look at this, http://www.akadia.com/services/ssh_scp_ ... sword.html

I see, that gets a bit more complex considering i just want to be notified of updates. No big deal though, i just thought it'd be cool to have.

Thanks.

It doesn't really matter much, but I thought that I'd clarify that the [[ used in "if" is not part of the syntax, but a command itself. This will work fine: