linux查看系统版本.

#lsb_release -a

#cat /proc/version

#cat /etc/issue

#cat /etc/redhat-realease(redhat才有的文件)

查看系统内存状态

#dmidecode -t 17

如果没有-t这个参数,也可以用

#dmidecode |grep -A16 "Memory Device$"

-A16表示显示查找的字符串之后的16行上下文.

没有-A16参数的结果

[root@backup ~]# dmidecode |grep  "Memory Device$"
        Memory Device
        Memory Device
        Memory Device
        Memory Device

显然这不是我们想看的结果

#dmidecode |grep -A16 "Memory Device$"

[root@backup ~]# dmidecode |grep -A16 "Memory Device$"
        Memory Device
                Array Handle: 0x001F
                Error Information Handle: Not Provided
                Total Width: 64 bits
                Data Width: 64 bits
                Size: 512 MB
                Form Factor: DIMM
                Set: None
                Locator: A0
                Bank Locator: Bank0/1
                Type: SDRAM
                Type Detail: Synchronous
Handle 0x0021
        DMI type 17, 21 bytes.
        Memory Device
                Array Handle: 0x001F
                Error Information Handle: Not Provided
                Total Width: Unknown
                Data Width: Unknown
                Size: No Module Installed
                Form Factor: DIMM
                Set: None
                Locator: A1
                Bank Locator: Bank2/3
                Type: Unknown
                Type Detail: Unknown
Handle 0x0022
        DMI type 17, 21 bytes.
        Memory Device
                Array Handle: 0x001F
                Error Information Handle: Not Provided
                Total Width: 64 bits
                Data Width: 64 bits
                Size: 512 MB
                Form Factor: DIMM
                Set: None
                Locator: A2
                Bank Locator: Bank4/5
                Type: SDRAM
                Type Detail: Synchronous
Handle 0x0023
        DMI type 17, 21 bytes.
        Memory Device
                Array Handle: 0x001F
                Error Information Handle: Not Provided
                Total Width: Unknown
                Data Width: Unknown
                Size: No Module Installed
                Form Factor: DIMM
                Set: None
                Locator: A3
                Bank Locator: Bank6/7
                Type: Unknown
                Type Detail: Unknown
Handle 0x0024
        DMI type 19, 15 bytes.
        Memory Array Mapped Address
                Starting Address: 0x00000000000
                Ending Address: 0x0003FFFFFFF

--color 彩色显示要查找的字符串.便于查看

文章引用自：