linux基本信息查询

1、通过fdisk命令查看

[root@gaosheng bjdb_script]# fdisk -l

Disk /dev/sda: 32.2 GB, 32212254720 bytes
255 heads, 63 sectors/track, 3916 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        3394    27262273+  83  Linux
/dev/sda2            3395        3916     4192965   82  Linux swap / Solaris
[root@gaosheng bjdb_script]# 

 参考文章

参考文章二

参考文章三

2、如何查看物理内存的个数

/*
　　有几个Size值，就表示有几个物理内存条
*/

A机器

[root@fboccserver64 ~]# dmidecode |grep -A16 "Memory Device$" | grep Size
        Size: 4096 MB
        Size: 4096 MB
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: 4096 MB
        Size: No Module Installed
        Size: 4096 MB
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
[root@fboccserver64 ~]#

B机器

[root@fbccserver ~]# dmidecode |grep -A16 "Memory Device$" | grep Size
        Size: 4096 MB
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: 4096 MB
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed

C机器 

[root@fbccserver ~]# dmidecode |grep -A16 "Memory Device$" | grep Size
        Size: 4096 MB
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: 4096 MB
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
        Size: No Module Installed
[root@fbccserver ~]# 

 查看CPU大小型号和相关信息

--查看物理cpu的个数
cat /proc/cpuinfo | grep "physical id" | sort | uniq | wc -l

--查看逻辑cpu的个数
cat /proc/cpuinfo | grep "processor" | wc -l

--物理内存查看方法
top

--查看内存信息方法
cat /proc/meminfo

--查看CPU大小型号和相关信息
dmidecode -t 4

--查看物理内存个数
/*
有几个Size值，就表示有几个物理内存条
*/
dmidecode |grep -A16 "Memory Device$" | grep Size

--Linux查看CPU信息、机器型号等硬件信息

查看linux系统版本命令