Output memory info of a machine running on CentOS using cat

You can output information about the memory of a machine running on CentOS by reading the /proc/meminfo file using the cat command.

Example:

$ cat /proc/meminfo
MemTotal:         131072 kB
MemFree:            1012 kB
Cached:            16580 kB
Active:            76420 kB
Inactive:          43368 kB
Active(anon):      65108 kB
Inactive(anon):    38100 kB
Active(file):      11312 kB
Inactive(file):     5268 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:        131072 kB
SwapFree:          64152 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:        103208 kB
Shmem:              7684 kB
Slab:              10256 kB
SReclaimable:       2140 kB
SUnreclaim:         8116 kB