UNIX for Dummies Questions & Answers

i would like to get the value -/+ buffers/cache used who is 212, how can i do this?
i have

Code:

   free -m | grep -i mem | awk '{ print $2 }'

for get value of total memory


total used free shared buffers cached
Mem: 7972 1237 6735 0 465 558
-/+ buffers/cache: 212 7760
Swap: 8001 0 8001

Code:

$ free -m | awk '/buffers\/cache/{print $(NF-1)}'
291

solved