The free command in Linux/Unix is used to show memory (RAM/SWAP) information.
Action: --- Output the memory usage - available and used, as well as swap
Details: --- The values are shown in kibibytes by default.
Command:
free
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
Action: --- Output the memory usage and also add a summary line with the total.
Details:
--- The -t flag is useful for seeing the combined total of memory and swap.
Command:
free -t