On most Ubuntu installations, curl is already installed. In order to check, type
curl
into your shell and press return.
If you see a message like
curl: try 'curl --help' or 'curl --manual' for more information
curl is already installed and you don’t need to do anything.
In case you see this message:
Command 'curl' not found, but can be installed with: apt install curl Please ask your administrator.
or (more rarely) this message:
-bash: /usr/bin/curl: No such file or directory
you can install curl by copying
sudo apt install curl
into your shell and pressing return.