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FREE(1)			      Linux User's Manual		       FREE(1)



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

SYNOPSIS
       free [-b | -k | -m] [-o] [-s delay ] [-c count ] [-a] [-t] [-l] [-V]

DESCRIPTION
       free  displays the total amount of free and used physical and swap mem-
       ory in the system, as well as the buffers  used	by  the	 kernel.   The
       shared  memory column represents the 'Shmem' value.  The available mem-
       ory column represents the 'MemAvailable' value.

   Options
       The -b switch displays the amount of memory in  bytes;  the  -k	switch
       (set by default) displays it in kilobytes; the -m switch displays it in
       megabytes.

       The -t switch displays a line containing the totals.

       The -o switch disables the display of a "buffer adjusted" line.	If the
       -o  option is not specified, free subtracts buffer memory from the used
       memory and adds it to the free memory reported.

       The -s switch activates continuous polling delay seconds apart. You may
       actually specify any floating point number for delay, usleep(3) is used
       for microsecond resolution delay times.

       The -c switch used together with the -s switch interrupts  the  polling
       after count repetitions.

       The -l switch shows detailed low and high memory statistics.

       The  -a	switch shows the available memory (if supported by the running
       kernel and enabled with sysctl -w  vm.meminfo_legacy_layout=0  ;	 shows
       zero  when  unsupported or disabled). The produced output is wider than
       80 characters.

       The -V switch displays version information.

FILES
       /proc/meminfo-- memory information


SEE ALSO
       ps(1), slabtop(1), vmstat(8), top(1)


AUTHORS
       Written by Brian Edmonds.

       Send bug reports to <albert@users.sf.net>




Cohesive Systems		 20 Mar 1993			       FREE(1)