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FREE


Section: Linux User’s Manual (1)
Updated: 20 Mar 1993
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NAME

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

SYNOPSIS

free [-b | -k | -m] [-o] [-s

delay

] [-t] [-l] [-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The shared memory column should be ignored; it is obsolete.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

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 -l switch shows detailed low and high memory statistics.

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 <[email protected]>




 

Index



NAME

SYNOPSIS

DESCRIPTION


Options


FILES

SEE ALSO

AUTHORS



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