get available memory in gb using single bash shell command

Question

following command returns available memory in kilobytes

cat /proc/meminfo | grep MemFree | awk '{ print $2 }'

can some one suggest single command to get the available memory in gb?

Answer

Just a slight modification to your own magical incantation:

awk '/MemFree/ { printf "%.3f n", $2/1024/1024 }' /proc/meminfo

P.S.: Dear OP, if you find yourself invoking grep & awk in one line you’re most likely doing it wrong ;} … Same with invoking cat on a single file; that’s hardly ever warranted.

Accepted Answer

Just a slight modification to your own magical incantation:awk '/MemFree/ { printf "%.3f n", $2/1024/1024 }' /proc/meminfoP.S.: Dear OP, if you find yourself invoking grep & awk in one line you&#8217;re most likely doing it wrong ;}  &#8230; Same with invoking cat on a single file; that&#8217;s hardly ever warranted.

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