更详细参考: https://blog.csdn.net/dream_broken/article/details/52883883
1.查看内存
DirectMap2M: 33544192 kB
[root@diagbot01 ~]# free -m
total used free shared buffers cached
Mem: 32112 11277 20835 0 332 2706
-/+ buffers/cache: 8238 23874
Swap: 16127 1 16126
2.查看磁盘
[root@diagbot01 ~]# df -lh Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_diagbot01-lv_root 992G 538G 405G 58% / tmpfs 16G 68K 16G 1% /dev/shm /dev/sda1 485M 40M 421M 9% /boot
centOS下实践查询版本/CPU/内存/硬盘容量等硬件信息
原文：https://www.cnblogs.com/kwzblog/p/10861246.html