Step 1: Add the Mozilla Daily PPA Repository#

First, open up your terminal window. Once it’s up, type in the command below to add the Ubuntu Mozilla Daily PPA repository to your system:

sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa

You’ll be prompted to enter your password. Go ahead and do that, then hit Enter to confirm the addition of the repository.

Step 2: Update Your Package List#

After adding the repository, it’s crucial to update the package list to ensure you get the latest software. Type the following command:

Following is the command :

cp -p /aaa/bbb /ccc/ddd

If you are using a Linux-based operating system and you want to know which specific distribution and version you have installed, there is a simple command that can help you with that. Just open a terminal window and type the following:

cat /etc/issue

This will display the name and the release number of your Linux distribution. For example, if you are using Debian 4.0, the output will look like this:

Debian GNU/Linux 4.0 \n \l

The \n and \l are special characters that represent the current date and the name of the terminal device, respectively. They are not part of the distribution name.