If you run Linux Mint and are looking for tutorials you often find better results googling for “How to do <x> in Ubuntu <version>” (where Ubuntu version is the base distribution that Mint is built on) than “How to do <x> in Mint <version>”.
I have a few machines, and don’t always remember which is running what.
lsb_release -a in a term will return your distribution name - but then you still need to look the Ubuntu base version up. A quick google didn't turn up a handy table mapping Mint name and number to its Ubuntu base version name and number, so I made one:
|Mint Version||Mint Name||Ubuntu Version||Ubuntu Name||Supported Until|
|14||Nadia||12.10||Quantal Quetzal||April 2014|
|13 (LTS)||Maya||12.04||Precise Pangolin||April 2017|
|12||Lisa||11.10||Oneiric Ocelot||April 2013|
|11||Katya||11.04||Natty Narwhal||October 2012|
|10||Julia||10.10||Maverick Meerkat||April 2012|
|9 (LTS)||Isadora||10.04||Lucid Lynx||April 2013|
BTW, if you want to see what your kernel version is, run