Hi.
I want to write a script to alter a value in a plist. I know how to do
it but for the script to run i have to install a plist gem like this:
"sudo gem install Plist".
and then I get prompted for the password...no problem.

I would like to have the script install the gem for me so It can be run
on machines that have a freshly installed OS.
If I put this line in the script " system("sudo gem install Plist")
I get asked for the password.

How do I use ruby to enter the password? (the password is always the
same in this case)

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