Linux 查看系统硬件信息(实例详解)

linux查看系统的硬件信息，并不像windows那么直观，这里我罗列了查看系统信息的实用命令，并做了分类，实例解说。

cpu

lscpu命令，查看的是cpu的统计信息.

blue@blue-pc:~$ lscpuArchitecture:          i686            #cpu架构CPU op-mode(s):        32-bit, 64-bitByte Order:            Little Endian   #小尾序CPU(s):                4               #总共有4核On-line CPU(s) list:   0-3Thread(s) per core:    1               #每个cpu核，只能支持一个线程，即不支持超线程Core(s) per socket:    4               #每个cpu，有4个核Socket(s):             1               #总共有1一个cpuVendor ID:             GenuineIntel    #cpu产商 intelCPU family:            6Model:                 42Stepping:              7CPU MHz:               1600.000BogoMIPS:              5986.12Virtualization:        VT-x            #支持cpu虚拟化技术L1d cache:             32KL1i cache:             32KL2 cache:              256KL3 cache:              6144K

 

查看/proc/cpuinfo,可以知道每个cpu信息，如每个CPU的型号，主频等。

#cat /proc/cpuinfoprocessor    : 0vendor_id    : GenuineIntelcpu family    : 6model        : 42model name    : Intel(R) Core(TM) i5-2320 CPU @ 3.00GHz.....

上面输出的是第一个cpu部分信息，还有3个cpu信息省略了。

 

内存

概要查看内存情况

free -m             total       used       free     shared    buffers     cachedMem:          3926       3651        274          0         12        404-/+ buffers/cache:       3235        691Swap:         9536         31       9505

这里的单位是MB，总共的内存是3926MB。

 

查看内存详细使用

# cat /proc/meminfo MemTotal:        4020868 kBMemFree:          230884 kBBuffers:            7600 kBCached:           454772 kBSwapCached:          836 kB.....

 

查看内存硬件信息

dmidecode -t memory# dmidecode 2.11SMBIOS 2.7 present.Handle 0x0008, DMI type 16, 23 bytesPhysical Memory Array    Location: System Board Or Motherboard....    Maximum Capacity: 32 GB....Handle 0x000A, DMI type 17, 34 bytes....Memory Device    Array Handle: 0x0008    Error Information Handle: Not Provided    Total Width: 64 bits    Data Width: 64 bits    Size: 4096 MB.....

我的主板有4个槽位，只用了一个槽位，上面插了一条4096MB的内存。

 

磁盘

查看硬盘和分区分布

# lsblkNAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTsda      8:0    0 465.8G  0 disk ├─sda1   8:1    0     1G  0 part /boot├─sda2   8:2    0   9.3G  0 part [SWAP]├─sda3   8:3    0  74.5G  0 part /├─sda4   8:4    0     1K  0 part ├─sda5   8:5    0 111.8G  0 part /home└─sda6   8:6    0 269.2G  0 part 

显示很直观

 

如果要看硬盘和分区的详细信息

# fdisk -lDisk /dev/sda: 500.1 GB, 500107862016 bytes255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 4096 bytesI/O size (minimum/optimal): 4096 bytes / 4096 bytesDisk identifier: 0x00023728   Device Boot      Start         End      Blocks   Id  System/dev/sda1   *        2048     2148351     1073152   83  Linux/dev/sda2         2148352    21680127     9765888   82  Linux swap / Solaris/dev/sda3        21680128   177930239    78125056   83  Linux/dev/sda4       177932286   976771071   399419393    5  Extended/dev/sda5       177932288   412305407   117186560   83  Linux/dev/sda6       412307456   976771071   282231808   83  Linux

 

网卡

查看网卡硬件信息

# lspci | grep -i 'eth'02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)

 

查看系统的所有网络接口

# ifconfig -aeth0      Link encap:以太网  硬件地址 b8:97:5a:17:b3:8f            .....lo        Link encap:本地环回            .....

或者是

ip link show1: lo: <LOOPBACK> mtu 16436 qdisc noqueue state DOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:002: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000link/ether b8:97:5a:17:b3:8f brd ff:ff:ff:ff:ff:ff

 

如果要查看某个网络接口的详细信息，例如eth0的详细参数和指标

# ethtool eth0Settings for eth0:    Supported ports: [ TP MII ]    Supported link modes:   10baseT/Half 10baseT/Full                             100baseT/Half 100baseT/Full                             1000baseT/Half 1000baseT/Full #支持千兆半双工，全双工模式    Supported pause frame use: No     Supports auto-negotiation: Yes #支持自适应模式，一般都支持    Advertised link modes:  10baseT/Half 10baseT/Full                             100baseT/Half 100baseT/Full                             1000baseT/Half 1000baseT/Full    Advertised pause frame use: Symmetric Receive-only    Advertised auto-negotiation: Yes #默认使用自适应模式    Link partner advertised link modes:  10baseT/Half 10baseT/Full                                          100baseT/Half 100baseT/Full     .....    Speed: 100Mb/s #现在网卡的速度是100Mb,网卡使用自适应模式，所以推测路由是100Mb，导致网卡从支持千兆，变成要支持百兆    Duplex: Full   #全双工    .....    Link detected: yes    #表示有网线连接，和路由是通的

 

 

其他

查看pci信息，即主板所有硬件槽信息。

lspci00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) #主板芯片00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) #显卡00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) #usb控制器00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04)00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) #声卡00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) #pci 插槽00:1c.2 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 3 (rev c4)00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4)00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04)00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)00:1f.2 IDE interface: Intel Corporation Panther Point 4 port SATA Controller [IDE mode] (rev 04) #硬盘接口00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)00:1f.5 IDE interface: Intel Corporation Panther Point 2 port SATA Controller [IDE mode] (rev 04) #硬盘接口02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) #网卡03:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8893 (rev 41)

如果要更详细的信息:lspci -v 或者 lspci -vv

如果要看设备树:lscpi -t

 

查看bios信息

# dmidecode -t bios......BIOS Information    Vendor: American Megatrends Inc.    Version: 4.6.5    Release Date: 04/25/2012    .......    BIOS Revision: 4.6......

dmidecode以一种可读的方式dump出机器的DMI(Desktop Management Interface)信息。这些信息包括了硬件以及BIOS，既可以得到当前的配置，也可以得到系统支持的最大配置，比如说支持的最大内存数等。

如果要查看所有有用信息

dmidecode -q

里面包含了很多硬件信息

转载:http://www.cnblogs.com/ggjucheng/archive/2013/01/14/2859613.html