Linux查看CPU、机器型号等硬件信息的方法详解

# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
      8  Intel(R) Xeon(R) CPU            E5410   @ 2.33GHz
(看到有8个逻辑CPU, 也知道了CPU型号)

# cat /proc/cpuinfo | grep physical | uniq -c
      4 physical id      : 0
      4 physical id      : 1
(说明实际上是两颗4核的CPU)
PS：Jay added on 10th, May, 2011
# 其实是可能有超线程HT技术，不一定是有4核，也可能是2核4线程；当时还理解不清楚

# getconf LONG_BIT
   32
(说明当前CPU运行在32bit模式下, 但不代表CPU不支持64bit)

# cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
   8
(结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)

# dmidecode | grep 'Processor Information'

# cat /proc/meminfo

# uname -a
linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux
(查看当前操作系统内核信息)

# cat /etc/issue | grep Linux
Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
(查看当前操作系统发行版信息)

查看机器型号
# dmidecode | grep "Product Name" 

查看网卡信息
# dmesg | grep -i eth

# cat /proc/cpuinfo | grep "physical id" | uniq | wc -l
2
**uniq命令：删除重复行；wc –l命令：统计行数**

# cat /proc/cpuinfo | grep "cpu cores" | uniq
cpu cores       : 4

# cat /proc/cpuinfo | grep 'model name' |uniq
model name      : Intel(R) Xeon(R) CPU           E5630  @ 2.53GHz
 

#cat /proc/meminfo | grep MemTotal
MemTotal:     32941268 kB  //内存32G

# 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                 //1条2G内存
        Form Factor: DIMM
        Set: 1
        Locator: DIMM1
        Bank Locator: Not Specified
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: 7F7F7F7F7F510000
        Serial Number: 0403E324
        Asset Tag: 450721
        Part Number: 72T256220HR3SA  
--
Memory Device
        Array Handle: 0x1000
        Error Information Handle: Not Provided
        Total Width: 72 bits
        Data Width: 64 bits
        Size: 2048 MB                    //1条2G内存
        Form Factor: DIMM
        Set: 1
        Locator: DIMM2
        Bank Locator: Not Specified
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: 7F7F7F7F7F510000
        Serial Number: 0403E324
        Asset Tag: 450721
        Part Number: 72T256220HR3SA  
--
Memory Device
        Array Handle: 0x1000
        Error Information Handle: Not Provided
        Total Width: 72 bits
        Data Width: 64 bits
        Size: No Module Installed           //1个内存空槽
        Form Factor: DIMM
        Set: 2
        Locator: DIMM3
        Bank Locator: Not Specified
        Type: DDR2
        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               //1个内存空槽
        Form Factor: DIMM
        Set: 2
        Locator: DIMM4
        Bank Locator: Not Specified
        Type: DDR2
        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            //1个内存空槽
        Form Factor: DIMM
        Set: 3
        Locator: DIMM5
        Bank Locator: Not Specified
        Type: DDR2
        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        //1个内存空槽
        Form Factor: DIMM
        Set: 3
        Locator: DIMM6
        Bank Locator: Not Specified
        Type: DDR2
        Type Detail: Synchronous
        Speed: Unknown
        Manufacturer:               
        Serial Number:       
        Asset Tag:     
        Part Number:  
 

# fdisk -l | grep Disk
Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes