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get value of free -m , used buffer

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linux-howto

http://www.unix.com – i would like to get the value -/+ buffers/cache used who is 212, how can i do this? i have 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 (HowTos)