How can I find out the total physical memory (RAM) of my linux box suitable to be parsed by a shell script?

Question

I\'m typing a shell script to find out the total physical memory in some RHEL linux boxes.

First of all I want to stress that I\'m interested in the total ph

Answer 1

Add the last 2 entries of /proc/meminfo, they give you the exact memory present on the host.

Example:

DirectMap4k:       10240 kB
DirectMap2M:     4184064 kB

10240 + 4184064 = 4194304 kB = 4096 MB.