Linux硬件信息查看

[root@localhost ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
8  Intel(R) Xeon(R) CPU            E5410   @ 2.33GHz
//8个逻辑CPU

[root@localhost ~]#  cat /proc/cpuinfo | grep physical | uniq -c
4 physical id      : 0
4 physical id      : 1
//两颗4核的CPU

[root@localhost ~]# getconf LONG_BIT
32
//当前CPU运行在32bit模式下, 但不代表CPU不支持64bit
[root@localhost ~]# cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
1
//结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit

[root@localhost ~]# cat /proc/meminfo|grep MemTotal
MemTotal:        1939992 kB
[root@localhost ~]# free -m
total       used       free     shared    buffers     cached
Mem:          1894        890       1004          0        203        505
-/+ buffers/cache:        181       1713
Swap:         2017          0       2017
[root@localhost ~]# grep SwapTotal /proc/meminfo
SwapTotal:       2066424 kB

[root@localhost ~]# fdisk -l
Disk /dev/sda: 17.2 GB, 17179869184 bytes
255 heads, 63 sectors/track, 2088 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000169cd
Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          26      204800   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              26        1332    10485760   83  Linux
/dev/sda3            1332        1589     2066432   82  Linux swap / Solaris
/dev/sda4            1589        2089     4019200    5  Extended
/dev/sda5            1589        2089     4018176   83  Linux
[root@localhost ~]# fdisk -l |grep Disk
Disk /dev/sda: 17.2 GB, 17179869184 bytes
Disk identifier: 0x000169cd
[root@localhost ~]# df -l
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda2             10321208   3950936   5845984  41% /
tmpfs                   969996         0    969996   0% /dev/shm
/dev/sda1               198337     30603    157494  17% /boot
/dev/sda5              3954996     73440   3680648   2% /home
[root@localhost ~]# df -lh
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2             9.9G  3.8G  5.6G  41% /
tmpfs                 948M     0  948M   0% /dev/shm
/dev/sda1             194M   30M  154M  17% /boot
/dev/sda5             3.8G   72M  3.6G   2% /home
//-l, --local 限制列出的档案结构
//-h, --human-readable 使用人类可读的格式(预设值是不加这个选项的...)
//-k, --kilobytes 就像是 --block-size=1024
[root@localhost ~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: NECVMWar Model: VMware IDE CDR10 Rev: 1.00
Type:   CD-ROM                           ANSI  SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: VMware   Model: Virtual disk     Rev: 1.0
Type:   Direct-Access                    ANSI  SCSI revision: 02

#磁盘UUID查看
[root@Hello ~]# ls -l /dev/disk/by-uuid/
total 0
lrwxrwxrwx 1 root root 10 Jul  5 16:09 0cfd7967-d506-4377-890a-ddf3e0da2bf5 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jul  5 16:09 0e478849-816a-4d0f-b554-62341a611e80 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jul  5 16:09 8770e844-af6f-485c-86bc-b55e496fdcb8 -> ../../sda5
lrwxrwxrwx 1 root root 10 Jul  5 16:09 e26d2355-1927-4d61-8817-145ac63c3e83 -> ../../sda1

#swap分区查看
[root@Hello ~]# swapon -s
Filename                Type        Size    Used    Priority
/dev/sda3                               partition   2066424 0   -1
[root@Hello ~]# cat /proc/swaps
Filename                Type        Size    Used    Priority
/dev/sda3                               partition   2066424 0   -1
[root@Hello ~]#

[root@localhost ~]# dmesg | grep -i eth
eth0: registered as PCnet/PCI II 79C970A
eth0: link up
eth0: no IPv6 routers present

[root@localhost ~]# dmidecode | grep "Product Name"
Product Name: VMware Virtual Platform
Product Name: 440BX Desktop Reference Platform

[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.32-358.el6.i686 #1 SMP Thu Feb 21 21:50:49 UTC 2013 i686 i686 i386 GNU/Linux
[root@localhost ~]# cat /etc/issue
CentOS release 6.4 (Final)
Kernel \r on an \m
[root@localhost ~]# cat /proc/version
Linux version 2.6.32-358.el6.i686 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) ) #1 SMP Thu Feb 21 21:50:49 UTC 2013
[root@localhost ~]# cat /etc/*release
CentOS release 6.4 (Final)
LSB_VERSION=base-4.0-ia32:base-4.0-noarch:core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch
CentOS release 6.4 (Final)
CentOS release 6.4 (Final)
[root@localhost ~]# uname -r
2.6.32-358.el6.i686
[root@localhost ~]# lsb_release -a
LSB Version:    :base-4.0-ia32:base-4.0-noarch:core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: CentOS
Description:    CentOS release 6.4 (Final)
Release:    6.4
Codename:   Final