how to check memory RAM on Redhat?

[jcho at jcho.net]

Hello,

I wonder how to check the momory RAM in Linux ( Redhat).
and once I add more memory, do I need to do anything in order to make it utilize
the system??

Could anyone give me an advice for me.

Thanks in advance,

Joe Cho
jcho at jcho.net
a member of kclug.

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