March 2012
Beginner to intermediate
230 pages
7h 27m
English
Content preview from Linux Pocket Guide, 2nd Edition
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Name
free — stdin stdout - file -- opt --help --version
Synopsis
free [options]The free command displays
memory usage in kilobytes:
$ free
total used free shared buffers cached
Mem: 523812 491944 31868 0 67856 199276
-/+ buffers/cache: 224812 299000
Swap: 530104 0 530104The Linux kernel reserves as much memory as possible for
caching purposes, so your best estimate of free RAM in the preceding
output is in the buffers/cache
row, free column (i.e.,
299000K).
Useful options
|
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Run continuously and
update the display every |
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Display amounts in bytes. |
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Display amounts in megabytes. |
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Add a totals row at the bottom. |
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Don’t display the “buffers/cache” row. |
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