free
-
command used to display amount of free and used memory in the Linux system.
-
comand displays the total amount of free and used physical and swap memory in the sys-
tem, as well as the buffers used by the kernel. -
The shared memory column should beignored; it is obsolete.
Synopsis: free [options]
| Options | Description |
| -b | displays the amount of memory in bytes |
| -k | displays memory information in kilobytes |
| -m | displays memory information iin megabytes. |
| -t | displays memory information and add in a line containing the totals of memory usage |
|
# free -b total used free shared buffers cached Mem: 526786560 507113472 19673088 0 49758208 385011712 -/+ buffers/cache: 72343552 454443008 Swap: 1073733632 0 1073733632 # free -k total used free shared buffers cached Mem: 514440 495228 19212 0 48592 375988 -/+ buffers/cache: 70648 443792 Swap: 1048568 0 1048568 #free -m total used free shared buffers cached Mem: 502 483 18 0 47 367 -/+ buffers/cache: 69 433 Swap: 1023 0 1023 # free -t total used free shared buffers cached Mem: 514440 495228 19212 0 48600 375980 -/+ buffers/cache: 70648 443792 Swap: 1048568 0 1048568 Total: 1563008 495228 1067780 |
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