学习啦 > 学习电脑 > 操作系统 > Linux教程 > linux查看系统信息命令

linux查看系统信息命令

时间: 春健736 分享

linux查看系统信息命令

  linux 查看系统信息命令是linux初学者必备的基础知识, 这些命令也非常有用, 因为进入linux第一件事就可能是首先查看系统信息,因此学习啦小编为大家分享一些linux查看系统信息的命令,供大家参考!

  linux查看系统信息命令

  cpu

  lscpu命令,查看的是cpu的统计信息.

  blue@blue-pc:~$ lscpu

  Architecture: i686 #cpu架构

  CPU op-mode(s): 32-bit, 64-bit

  Byte Order: Little Endian #小尾序

  CPU(s): 4 #总共有4核

  On-line CPU(s) list: 0-3

  Thread(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cpu

  Vendor ID: GenuineIntel #cpu产商 intel

  CPU family: 6

  Model: 42

  Stepping: 7

  CPU MHz: 1600.000

  BogoMIPS: 5986.12

  Virtualization: VT-x #支持cpu虚拟化技术

  L1d cache: 32K

  L1i cache: 32K

  L2 cache: 256K

  L3 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/cpuinfo

  processor : 0

  vendor_id : GenuineIntel

  cpu family : 6

  model : 42

  model 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 cached

  Mem: 3926 3651 274 0 12 404

  -/+ buffers/cache: 3235 691

  Swap: 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 kB

  MemFree: 230884 kB

  Buffers: 7600 kB

  Cached: 454772 kB

  SwapCached: 836 kB

  .....

  查看内存硬件信息

  dmidecode -t memory

  # dmidecode 2.11

  SMBIOS 2.7 present.

  Handle 0x0008, DMI type 16, 23 bytes

  Physical 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

  # lsblk

  NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

  sda 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 -l

  Disk /dev/sda: 500.1 GB, 500107862016 bytes

  255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors

  Units = sectors of 1 * 512 = 512 bytes

  Sector size (logical/physical): 512 bytes / 4096 bytes

  I/O size (minimum/optimal): 4096 bytes / 4096 bytes

  Disk 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 -a

  eth0 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 show

  1: lo: <LOOPBACK> mtu 16436 qdisc noqueue state DOWN

  link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

  2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000

  link/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 eth0

  Settings 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。

  lspci

  00:00.0 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。

看过“ linux查看系统信息命令 ”的人还看了:

1.linux系统日志查看命令

2.Linux系统常用命令合集

3.linux怎么使用stat命令查看文件信息

4.如何查看Linux加载内置模块的信息

5.linux系统常用基本命令

656517