Linux环境下查看服务器硬件信息

查看CPU型号
      cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c 
      16  Intel(R) Xeon(R) CPU           X5560  @ 2.80GHz
查看物理CPU个数
      cat /proc/cpuinfo | grep physical | uniq -c
      1 physical id     : 1
      1 physical id     : 0
查看CPU运行模式：32位或者64位，如果是32位的话并不代表不能运行在64位下
      getconf LONG_BIT 
      64
查看是否CPU支持64位系统，如果值大于0，则支持64位运算，lm指long mode
      cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l 
      16

查看内存信息 
      cat /proc/meminfo
      MemTotal:     74175052 kB
      MemFree:       4242856 kB
      Buffers:        675664 kB
      Cached:       65423884 kB
      SwapCached:         16 kB
      Active:       46231212 kB
      Inactive:     20719936 kB
      HighTotal:           0 kB
      HighFree:            0 kB
      LowTotal:     74175052 kB
      LowFree:       4242856 kB
      SwapTotal:    75778596 kB
      SwapFree:     75778384 kB
      Dirty:              60 kB
      Writeback:           0 kB
      AnonPages:      851416 kB
      Mapped:       12422988 kB
      Slab:          1495940 kB
      PageTables:    1372180 kB
      NFS_Unstable:        0 kB
      Bounce:              0 kB
      CommitLimit:  112866120 kB
      Committed_AS: 21125340 kB
      VmallocTotal: 34359738367 kB
      VmallocUsed:    299916 kB
      VmallocChunk: 34359438111 kB
      HugePages_Total:     0
      HugePages_Free:      0
      HugePages_Rsvd:      0
      Hugepagesize:     2048 kB
查看当前系统内核信息
      uname -a
      Linux HOSTNAME 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
查看当前操作系统内核信息 
      cat /etc/issue | grep Linux 
      Red Hat Enterprise Linux Server release 5.4 (Tikanga)
查看服务器型号
      dmidecode | grep "Product Name"  
      Product Name: PowerEdge R710
      Product Name: 0VWN1R
查看网卡信息
      dmesg | grep -i eth 
      Broadcom NetXtreme II Gigabit Ethernet Driver bnx2 v1.9.3 (March 17, 2009)
      eth0: Broadcom NetXtreme II BCM5709 1000Base-T (C0) PCI Express found at mem d6000000, IRQ 106, node addr a4badb28c33d
      eth1: Broadcom NetXtreme II BCM5709 1000Base-T (C0) PCI Express found at mem d8000000, IRQ 114, node addr a4badb28c33f
      eth2: Broadcom NetXtreme II BCM5709 1000Base-T (C0) PCI Express found at mem da000000, IRQ 122, node addr a4badb28c341
      eth3: Broadcom NetXtreme II BCM5709 1000Base-T (C0) PCI Express found at mem dc000000, IRQ 130, node addr a4badb28c343
      cnic: Added CNIC device: eth0
      cnic: Added CNIC device: eth1
      cnic: Added CNIC device: eth2
      cnic: Added CNIC device: eth3
      bnx2: eth0: using MSIX
      ADDRCONF(NETDEV_UP): eth0: link is not ready
      bnx2i: iSCSI not supported, dev=eth0
      bnx2i: iSCSI not supported, dev=eth0
      bnx2: eth0 NIC Copper Link is Up, 1000 Mbps full duplex
      ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
      eth0: no IPv6 routers present
      process `sysctl' is using deprecated sysctl (syscall) net.ipv6.neigh.eth0.base_reachable_time; Usenet.ipv6.neigh.eth0.base_reachable_time_ms instead.