I'm trying to access all of the repositories but i am unable to change the settings in the software center, command line, or right from the source list. I have a hypothysis that it may be due to unistalled updates but when i run "sudo apt-get install update" it says that it is unable to locate package update. help?


You want this command:

sudo apt-get update

You are having some confusion about the syntax of apt-get:

To get the most updated list of all the software, you do:

sudo apt-get update

For installing packages, you have tell apt-get what to install:

sudo apt-get install package

You were mixing above commands. To modify your repositories, you could either write in dash "Software Sources" and add/modify/deactivate repositories or editing directly the sources.list file:

sudo vim /etc/apt/sources.list

Remember that each time you do sudo you are giving yourself god-like powers over your system, use the power with prudence and responsibility.

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