I see some linux page says how to install the key:
wget http://packages.ros.org/ros.key -O - | sudo apt-key add -
What is "-O -" in wget?
It seems related with "add -".
How these works?
Hi: On page 15 (chapter 3, Packages and Patches) of version 7.5 of the Linux from Scratch book, it says:
An easy way to download all of the packages and patches is by using wget-list as an input to wget. For example:
wget -i wget-list -P $LFS/sources
Where is this wget-list file? Am I supposed to write the file myself? The list of packages is huge!
I unable to run sudo apt-get command into scientific Linux 7.1.