I’m working in the latest Debian environment with Apache2. I have installed Letsencrypt with
git clone https://github.com/letsencrypt/letsencrypt
which went fine as far as I can tell.
Now in my user directory I have a letsencrypt directory. Whether I run it from there or from the user directory, the command
sudo ./letsencrypt --redirect
gives me the error message
sudo: ./letsencrypt: command not found.
But as it looks, all files are there! What am I doing wrong?