How do I modify a source list?

Append new line of text to current sources. list file

1. CLI echo “new line of text” | sudo tee -a /etc/apt/sources.list.
2. GUI (Text Editor) sudo gedit /etc/apt/sources.list.
3. Paste new line of text on new line at end of current sources. list text file in Text Editor.
4. Save and close sources.list.

How do I edit etc APT sources list?

The main Apt sources configuration file is at /etc/apt/sources. list. You can edit this files (as root) using your favorite text editor. To add custom sources, creating separate files under /etc/apt/sources.

How do I get to the ETC APT sources list?

Adding a Repository Using the sources. list File

1. Open the /etc/apt/sources.list file in any editor: $ sudo nano /etc/apt/sources.list.
2. Add the VirtualBox repository in the file:
3. Save and close the file.
4. After adding the repository in the /etc/apt/sources.

How do I edit the sources list in Ubuntu?

Click on the “Reload” button to apply changes. Editing the Ubuntu sources list in the terminal means opening up the /etc/apt/sources.list file in a text-based editor like Nano and manually entering or removing text to disable or enable software repositories. There are many ways to add new repos to your Ubuntu sources list file.

How to edit software sources in Ubuntu terminal?

Same can also be done by System>>Preferences>>Software Sources. The better method is method 2, although it is a bit geeky. Method 2:- Using Terminal – In this we’d edit the sources file using gedit. To do this go to terminal and type sudo gedit /etc/apt/sources.list to open the sources.list file.

How do I update software sources in Ubuntu?

To do this go to terminal and type sudo gedit /etc/apt/sources.list to open the sources.list file. Paste the link to the repository there and save the file. You’d be asked for password. Now with internet connection active, type sudo apt-get update. This will update the repositories of software.

Is there a command to undo a change in sources list in Ubuntu?

What is the simplest way to either edit the file in the command line or remove it. I have enabled the root account but am not 100% confident that i will not do something stupid such as make root the owner of my home directory without having gksu nautilus installed. is there a command to undo a change in sources list?