Brave upgrade/update

[Igor1]

Hello,
My question is, how to upgrade/update Brave?
For I have OS Linux Ubuntu Mate 18.10 LTX.
And I’m new to Linux.
Brave relevant article runs:

Quote:

Ubuntu 16.04+ and Mint 18+

curl -s https://brave-browser-apt-release.s3.brave.com/brave-core.asc | sudo apt-key --keyring /etc/apt/trusted.gpg.d/brave-browser-release.gpg add -

source /etc/os-release

echo "deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ UBUNTU_CODENAME main" | sudo tee /etc/apt/sources.list.d/brave-browser-release-{UBUNTU_CODENAME}.list

sudo apt update

sudo apt install brave-browser brave-keyring

Unquote.

Sorry, but that doesn’t work in my Terminal.

Any better ideas?
Or any link to go?

What I’m seeking for is right “sudo …”

Thank you for your time.
Igor Evgen

[Mattches]

@Igor1,
In your Terminal, before type sudo [your user name]. You’ll be prompted for your login password for your machine. Enter it. Then retype the commands you found here.

[Igor1]

Thank you, Mattches.

I did as you’d told.

The machine answered:

sudo: curl: command not found
gpg: no valid OpenPGP data found.
igor@igor-System-Product-Name:~/Desktop$

I love it. Especially $.

You know, I’m neither a computer engineer nor even close.

Could you please send to a simple me just “sudo …” to copy and paste?

Thanks again. Igor