show-used-and-available-system-memory.md

Show Used And Available System Memory

The free command will display the total RAM on your system as well as how much of it is used and how much is still freely available.

$ free
              total        used        free      shared  buff/cache   available
Mem:        1000260      166004      552808       14440      281448      664724
Swap:             0           0           0

The default output format of free is not very readable though. To make it more human readable, you can add the -h (human) and --si (International System of Units) flags.

$ free -h --si
              total        used        free      shared  buff/cache   available
Mem:           976M        162M        547M         14M        266M        649M
Swap:            0B          0B          0B

See man free for more details.