018-the-free-command.md

The free command¶

The free command in Linux/Unix is used to show memory (RAM/SWAP) information.

Usage¶

Show memory usage¶

Action: — Output the memory usage - available and used, as well as swap

Details: — Outputted values are not human-readable (are in bytes)

Command: free

Show memory usage in human-readable form¶

Action: — Output the memory usage - available and used, as well as swap

Details: — Outputted values ARE human-readable (are in GB / MB)

Command: free -h