in ODOC

ODOC: free

free — Display Information about Memory utilization

Summary:-

Displays the total amount of free and used physical memory & swap space in the system, as well as the buffers & cache consumed by the kernel.

Examples :-

$ free — Display the mem info in KB

$ free -m — Display the mem info in MB

$ free -m -t — Display the total mem info

$ free -s 2 — Display the mem info for every 2 sec

$ free -s 2 -c 5 — Display the mem info for every 2 sec, but only 5 times

$ cat /proc/meminfo — This is the original file which is used by free command for the report

Read: man free

Tech Tags: linux