Under Linux, we often use the top command to view the system process, and top can also display the system memory. Our commonly used special tool for viewing content under Linux is the free command.
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Detailed explanation of memory viewing command free under Linux:
To view memory under Linux, we generally use the free command:
pre class=”brush:php;toolbar:false”>$ free
total used free shared buffers cached
Mem: 3266180 3250004 16176 0 110652 2668236
-/+ buffers/cache: 471116 2795064
Swap: 2048276 80160 1968116
The following is an explanation of the output of the memory view free command:
total: the total size of physical memory.
used: How much has been used.
free: How many are available.
Shared: The total amount of memory shared by multiple processes.
Buffers/cached: The size of the disk cache.
The third line (-/+ buffers/cached):
used: How much has been used.
free: How many are available.
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