What is Linux free command? free is a popular command used by system administrators on Unix/Linux platforms. It’s a powerful tool that gives insight into the memory usage in human-readable format.
What is available in free command? free Command Examples
free: the unused memory. shared: memory used by tmpfs. buff/cache: the combined memory filled by kernel buffers, page cache, and slabs. available: estimated free memory that can be used without starting to swap.
What is command free M? You have used free command with ‘-m’ option, which is used to display the result in megabytes. -m, –mega Display the amount of memory in megabytes. Total memory is 595(Used+free)
What does free command do in Unix? On Unix-like operating systems, the free command displays the total amount of free and used physical and swap memory, and the buffers used by the kernel.