一、所有机器硬件信息：
dmesg |more
二、CPU信息：
cat /proc/cpuinfo 查看有几核
lscpu 查看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
三、MEM内存：
cat /proc/meminfo
free -m
top
dmidecode -t memory 查看内存硬件信息
[jason@mofei zabbix]$ sudo dmidecode -t memory# dmidecode 2.12SMBIOS 2.4 present.Handle 0x1000, DMI type 16, 15 bytesPhysical Memory Array Location: Other Use: System Memory Error Correction Type: Multi-bit ECC Maximum Capacity: 2 GB --最大支持2G内存 Error Information Handle: Not Provided Number Of Devices: 1 --只有一个槽位Handle 0x1100, DMI type 17, 21 bytesMemory Device Array Handle: 0x1000 Error Information Handle: 0x0000 Total Width: 64 bits Data Width: 64 bits Size: 2048 MB --使用槽位，插上一条2G内存条 Form Factor: DIMM Set: None Locator: DIMM 0 Bank Locator: Not Specified Type: RAM Type Detail: None
四、磁盘信息：
1.df -Th 查看磁盘上各目录大小
2.fdisk -h 查看磁盘分区及大小详细信息，包括U盘
3.cat /proc/partitions
4.lsblk查看磁盘和分区分布
[root@cp-mysql01 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1.8T 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 1.8T 0 part
├─centos-root 253:0 0 50G 0 lvm /
├─centos-swap 253:1 0 15.8G 0 lvm [SWAP]
├─centos-home 253:2 0 10G 0 lvm /home
└─centos-data 253:3 0 1.8T 0 lvm /data
五、NET网卡信息：
1.ethtool em1 指定 查看网卡信息
2.ifconfig
3.cat /etc/sysconfig/network-scripts/ifcf-em1
4.lscpi |grep -i 'eth' 查看网卡硬件信息
[root@cp-mysql01 ~]# lspci |grep -i 'eth'
06:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)
06:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)
主板信息：
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)
lspci -v/-vv显示更详细的主板信息
lspci -t查看设备树
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，包括硬件以及BIOS，既可以得到当前配置也知道系统支持最大配置，比如支持最大内存等。