Ok, I tried the first line and nothing happened, it just went to a new Bash line.
I then tried the second one and got this:
-bash-4.2$ wget https://dl.eff.org/certbot-auto; chmod a+x certbot-auto
–2017-01-17 11:11:12-- https://dl.eff.org/certbot-auto
Resolving dl.eff.org… 173.239.79.196
Connecting to dl.eff.org|173.239.79.196|:443… connected.
HTTP request sent, awaiting response… 200 OK
Length: 46237 (45K) [text/plain]
Saving to: `certbot-auto’
100%[=======================================================================>] 46,237 --.-K/s in 0.03s
2017-01-17 11:11:12 (1.54 MB/s) - `certbot-auto’ saved [46237/46237]
-bash-4.2$