bash - how to extract the remaining memory from free using awk? -
i need extract available memory output free
, thought use awk , came free | awk '{print $4}'
. gives me output like:
$ free | awk '{print $4}' shared 365296 1273812 3931364
mind, title shared isn't title of these numbers, numbers free (/usr/bin/free
has no title in first column, numbers free appear in 4th column title reported 5th). however, having this, how return second line? i'm not interested in rest now.
free | awk 'nr==2 {print $4}'
nr, row/line number
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