Command Lnd Not Found Even After Installing Lnd

I tried installing lnd using the commands shown in the installation guide. I used these commands:

git clone 
cd lnd
make install

but when I try running the lnd command, I get this:

Command 'lnd' not found

How can I solve this issue? I am running Ubuntu 20.04.

edit: I have go1.18.1 installed. I did execute the commands above, but nothing changed. Here are the $GOPATH and $PATH variables:

echo $GOPATH 
/usr/local/go

echo $PATH
/home/ayoub/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/ayoub/.dotnet/tools:/usr/local/go/bin:/usr/local/go/bin