If you do
free -m | sed -n 2p
I want to work with the output from the last, second to last, and third columns. The problem is I want to keep it consistent and use the output from
I want to be able to keep the output consistent without running the
free -m | sed -n 2p and extracting what the three columns that I need three times; I want to be able to do it once. How can I do this?