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linux查看硬件信息

linux如何查看cpu,內存,操作系統版本,機器型號,網卡,硬盤等硬件信息?

1. linux查看CPU信息(型號)

# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
      4  Intel(R) Core(TM) i3 CPU         540  @ 3.07GHz
      (看到有4個邏輯CPU, 也知道了CPU型號)
      
# cat /proc/cpuinfo | grep physical | uniq -c
      4 physical id     : 0
      (說明實際上是一顆4核的CPU)

# getconf LONG_BIT
   32
(說明當前CPU運行在32bit模式下, 但不代表CPU不支持64bit)

# cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
   4
(結果大於0, 說明支持64bit計算. lm指long mode, 支持lm則是64bit)

2. linux查看內存信息

# cat /proc/meminfo
MemTotal:      4074364 kB
MemFree:         68488 kB
Buffers:        580084 kB
Cached:         885684 kB
SwapCached:       2668 kB
Active:        3107784 kB
Inactive:       600676 kB
HighTotal:     3202624 kB
HighFree:        59136 kB
LowTotal:       871740 kB
LowFree:          9352 kB
SwapTotal:     2104504 kB
SwapFree:      2065408 kB
Dirty:             392 kB
Writeback:           0 kB
AnonPages:     2240628 kB
Mapped:          83348 kB
Slab:           277036 kB
PageTables:      10448 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   4141684 kB
Committed_AS:  4054576 kB
VmallocTotal:   116728 kB
VmallocUsed:      3728 kB
VmallocChunk:   112764 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

3. linux查看操作系統版本

# uname -a
Linux colorfulcv 2.6.18-164.el5PAE #1 SMP Tue Aug 18 15:59:11 EDT 2009 i686 i686 i386 GNU/Linux
(查看當前操作系統內核信息)

#  cat /etc/issue | grep Linux
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
(查看當前操作系統發行版信息)

4. linux查看機器型號

# dmidecode | grep 'Product Name'

5. linux查看網卡信息

# mii-tool

6. linux查看硬盤信息

# fdisk -l
# smartctl -a /dev/sda
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