Command to check the RAM size in Linux OS Terminal

Open a terminal (Ctrl + Alt + T).

Run following command to see RAM information in KB (1 KB is equal to 1024 bytes).

free

Run following command to see RAM information in MB (1 MB is equal to 1024 KB).

free -m

Run following command to see RAM information in GB (1 GB is equal to 1024 MB).

free -g

Run following command to see more information about RAM.

free -h

Reference

URL: Linux Manual Page

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