How can I find out how much memory my Linux is using?

From a command shell, use the “concatenate” command: cat /proc/meminfo for memory usage information. You should see a line starting MemTotal:  see below.  ie: MemTotal: 15733472 or 15GB, MemFree: and MemAvailable:

This is the total memory Linux thinks it has available to use.

 

 

 

 

 

You can also use commands

free - m

vmstat

top

htop

to find current memory usage

 

Ron Jagannathan has written 54 articles

Ronan is a Caffeine dependent life-form from Planet Earth who wants to be a Jedi Knight of cloud computing. A man of mystery and power, whose power is exceeded only by his mystery. Quantum Physicist, TransHumanist, Systems Architect, Unix Administrator, Artificial Intelligence, Machine Learning and DIY Gadget enthusiast. Believes that the Universe has a high probability of being a simulation.
But he's real and hopefully some of his readers are too.
email: Ron.Jagannathan@gmail.com ph: 202 355 5205
https://www.linkedin.com/in/ronjagan/
My Famous Quotes:
“In a Unix Universe, God is known by a four letter word called root. To err is human...to really foul requires you to be root.. err.. god.” ― Ron Jagannathan

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