查看unix系统cpu,内存,磁盘信息

如何察看unix系统CPU信息：
psrinfo -v
可查看系统cpu的配置信息。
例子：
>psrinfo -v
Status of virtual processor 0 as of: 03/01/2012 16:41:07
on-line since 12/24/2011 10:49:43.
The sparcv9 processor operates at 1592 MHz,
and has a sparcv9 floating point processor.
Status of virtual processor 1 as of: 03/01/2012 16:41:07
on-line since 12/24/2011 10:49:43.
The sparcv9 processor operates at 1592 MHz,
and has a sparcv9 floating point processor.

如何察看系统内存信息：
prtconf | grep -i memory
可以查看当前系统配置的内存大小。
vmstat
vmstat 可以查看系统虚拟内存统计信息
> vmstat
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr s0 s1 s2 s3 in sy cs us sy id
0 0 0 33414504 5992568 47 93 68 9 9 0 1 0 0 -0 4 1813 751 587 1 2 98

如何查看系统磁盘空间
df
查看各磁盘总的大小，已使用大小，剩余大小。