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
