在linux系统中，查看机器的硬件信息，可以用命令来实现。
比如下面查看内存的条数等信息的命令。
查看硬件信息，适用于ubuntu系列发行版本，命令：
lshw
Linux 下查看内存条数，命令：
复制代码 代码示例:
dmidecode |grep -A16 "Memory Device$"
比如我的这台centos主机，显示内容如下：
复制代码 代码示例:
[root@jbxue ~]# dmidecode | grep -A16 "Memory Device$"
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB
Form Factor: DIMM
Set: 1
Locator: DIMM_A1
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 1333 MHz
Manufacturer: 00AD000080AD
Serial Number: 334485F9
Asset Tag: 01113200
Part Number: HMT325U7BFR8A-H9
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB
Form Factor: DIMM
Set: 1
Locator: DIMM_A2
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 1333 MHz
Manufacturer: 00AD000080AD
Serial Number: 331485F6
Asset Tag: 01113200
Part Number: HMT325U7BFR8A-H9
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed
Form Factor: DIMM
Set: 2
Locator: DIMM_A3
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed
Form Factor: DIMM
Set: 2
Locator: DIMM_A4
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB
Form Factor: DIMM
Set: 5
Locator: DIMM_B1
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 1333 MHz
Manufacturer: 00AD000080AD
Serial Number: 22BDC08E
Asset Tag: 01113000
Part Number: HMT325U7BFR8A-H9
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB
Form Factor: DIMM
Set: 6
Locator: DIMM_B2
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous Unbuffered (Unregistered)
Speed: 1333 MHz
Manufacturer: 00AD000080AD
Serial Number: 33C48622
Asset Tag: 01113200
Part Number: HMT325U7BFR8A-H9
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed
Form Factor: DIMM
Set: 6
Locator: DIMM_B3
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed
Form Factor: DIMM
Set: 4
Locator: DIMM_B4
Bank Locator: Not Specified
Type: DDR3
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
[root@jbxue ~]#
另外，有关dmidecode命令的详细用法，可以参考文章：
Linux 下dmidecode查看内存条数的命令
linux查看主板内存槽与内存信息的命令dmidecode
dmidecode命令解读服务器硬件信息
