How to view the usage of RAM on a server?

To view the usage of RAM on a Linux server, you can use several commands:

• free -h — shows total, used, and free memory in a human-readable format.
• top or htop — interactive utilities that display current CPU and memory load by processes.
• vmstat — provides statistics on memory, processes, and the system as a whole.

Example:

free -h

The output will show lines with information about memory: total, used, free, buffers/cache. This helps quickly assess the load on RAM.