free - Display amount of free and used memory in the system
#free --help
Usage:
free [options]
Options:
-b, --bytes show output in bytes
-k, --kilo show output in kilobytes
-m, --mega show output in megabytes
-g, --giga show output in gigabytes
--tera show output in terabytes
-h, --human show human-readable output
--si use powers of 1000 not 1024
-l, --lohi show detailed low and high memory statistics
-t, --total show total for RAM + swap
-s N, --seconds N repeat printing every N seconds
-c N, --count N repeat printing N times, then exit
-w, --wide wide output
--help display this help and exit
-V, --version output version information and exit
For more details see free(1).
Display amount of free and used memory in the system.
-
Display system memory:
free -
Display memory in Bytes/KB/MB/GB:
free -b|k|m|g -
Display memory in human readable units:
free -h -
Refresh the output every 2 seconds:
free -s 2