Your terminal is just a global commandline.
You have to install/use a miner software like Claymores miner, Silentarmy or Optiminer.
Claymore has been the most stable tool as it did not crash my graphic cards once. While Optiminer crashes some cards while mining, and Silentarmy (while still stable) does not offer a high hashrate as the other two.
Here hou can find the miners.
Optiminer
Silentarmy miner
Claymore miner
Just follow the instructions on each Github page on how to use a miner.
Keep in mind that you need a pool where you have to register / set up your wallet.
I use https://zec.suprnova.cc/ but there are a whole bunch out there. Just look in the forums here.