I am trying to understand the output of the free -hm command. I know about the columns other than "shared". Shared is taking up 50% of my RAM and I couldnt find much relevant info on it what it is and what it does. I am running ubuntu 16.10.
It will be helpful if anyone can explain it :)
total used free shared buff/cache available Mem: 7,7G 2,2G 498M 3,7G 5,0G 1,5G Swap: 3,9G 352M 3,6G