we have linux machine with 32G

we capture the mem as the follwing

mem=` cat /proc/meminfo | grep MemTotal | awk '{print $2}' ` echo $mem 32767184 

and now we convert it to GIGA

mem_in_giga=` echo $(( $mem / 1024 / 1024)) ` echo $mem_in_giga 31 

but from results we get 31 and not 32G

the same story with free command

free -g total used free shared buff/cache available Mem: 31 9 17 0 4 20 Swap: 7 0 7 

so how to get the 32G by any command solution?

We have a Linux machine with 32G. We capture the mem as follows:

mem=` cat /proc/meminfo | grep MemTotal | awk '{print $2}' ` echo $mem 32767184 

and now we convert it to GIGA:

mem_in_giga=` echo $(( $mem / 1024 / 1024)) ` echo $mem_in_giga 31 

but from the results we get 31 and not 32G.

The same story with the free command:

free -g total used free shared buff/cache available Mem: 31 9 17 0 4 20 Swap: 7 0 7 

So how do we get "32G" from any command?