Free命令监控linux内存

free -b -s5

 5秒钟现实一下当前内存使用状况,

Sample:

             total       used       free     shared    buffers     cached
Mem:    4250951680 4200087552   50864128          0  119189504 1267466240
-/+ buffers/cache: 2813431808 1437519872
Swap:   2146787328  952889344 1193897984

 

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