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free

NAME

free - Display amount of free and used memory in the system

SYNOPSIS

free [-b -k -m] [-o] [-s delay ] [-t] [-V]

DESCRIPTION

free displays the total amount of free and used physical and swap memory in the system, as well as the buffers used by the kernel.

The shared memory column should be ignored; it is obsolete.

OPTIONS

[username@hostname~]$ free -m
             total       used free     shared buffers   cached
Mem:         48314 45509       2805 0 992      20808
-/+ buffers/cache:      23708 24606
Swap:         3999 264       3735