The Subversion client contains the commands to interface with local and server repositories.
To install any application on Ubuntu, root permissions are required for the current user or you need to login as root.
How to check if Subversion is installed on Ubuntu and install it if not
Usually Linux systems install by default a version control system, but this depends on the Linux distribution.
To check if Subversion is installed on your machine, there are some very simple steps to follow:
Using the terminal
Open a terminal
Type the following command:
Since we have determined that the Subversion program is not installed under Ubuntu using the Terminal, then we could install it as follows:
Open a terminal or use the terminal from steps before.
Type the command:
sudo apt-get install subversion
You might be asked for your password. Type it and hit Enter.
It is possible that a list of packages will need to be installed for Subversion to work, they will be listed, then the message "Do you want to continue [Y/n]", type y then Enter to agree with.
Check the installation as mentioned in the "Check installation" steps.
Using a visual program - Synaptic Package Manager
After the program opens, a "Quick filer" window should be docked into the top area.
Type here the word "subversion", a list of packages should be listed below, while typing.
After we have determined that the subversion program is not installed into the system… by following the steps mentioned above…
Click on "subversion" checkbox and choose "Mark for installation"
Click on "Apply" button on left of the "Quick filter" docked window.
A summary window should appear listing the changes needed for this package to be installed.
Click on "Apply".
Wait for the downloads and install to finish.
The subversion package now should have a green bullet before.
Like other programs that are using subversion, MPLAB X also needs to use Subversion from the command line, so checking the installation from a Terminal would be advisable.
Please see topic - "Using the terminal -> Check installation"