linux how to check memory usage command code example

Example 1: linux memory usage

// linux command for reporting used memory percentage
$ free | grep Mem | awk '{print $3/$2 * 100.0}'
23.8171

Example 2: how can I check memory usage in linux?

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https://www.howtogeek.com/659529/how-to-check-memory-usage-from-the-linux-terminal/