How to Display a System's Installed Memory
To display the amount of memory that is installed on your system,
use the prtconf command.
Example 5–6 Displaying a System's Installed Memory
The following example shows sample output from the prtconf command.
The grep Memory command selects output from the prtconf command to display memory information only.
$ prtconf | grep Memory
Memory size: 128 Megabytes