如何快速了解装有Linux的新服务器

如何快速了解装有Linux的新服务器

骨骨学习笔记

当我们进入一个新的Linux服务器环境, 应该迅速了解服务器的软硬件基本信息. 以下是个示例:

# clear

# dmidecode | grep Product           (服务器型号)
                Product Name: Lenovo WQ R510 G6
                Product Name: DPX1066RK
# cat /proc/cpuinfo | grep name | cut -f2 -d:           (说明有8个cpu?)
Intel(R) Xeon(R) CPU           E5410 @ 2.33GHz
Intel(R) Xeon(R) CPU           E5410 @ 2.33GHz
Intel(R) Xeon(R) CPU           E5410 @ 2.33GHz
Intel(R) Xeon(R) CPU           E5410 @ 2.33GHz
Intel(R) Xeon(R) CPU           E5410 @ 2.33GHz
Intel(R) Xeon(R) CPU           E5410 @ 2.33GHz
Intel(R) Xeon(R) CPU           E5410 @ 2.33GHz
Intel(R) Xeon(R) CPU           E5410 @ 2.33GHz
# cat /proc/cpuinfo | grep physical                   (原来都是4核的,说明只是2个cpu)
physical id     : 0
physical id     : 0
physical id     : 0
physical id     : 0
physical id     : 1
physical id     : 1
physical id     : 1
physical id     : 1
# getconf LONG_BIT                   (而且是32位的cpu)
32
# free -m
             total       used       free     shared    buffers     cached
Mem:          8105       7974        131          0         69       6989
-/+ buffers/cache:        916       7189
Swap:         6094         46       6048
# uname -a
Linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux
# cat /etc/issue | grep Linux
Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
# rpm -qa | wc -l
sestatus
912
# sestatus
SELinux status:         disabled
hostname
# hostname
euis1
# domainname
(none)
# uptime
14:42:48 up 5 days, 1:55, 5 users, load average: 0.02, 0.06, 0.01
# cat /etc/hosts | grep -v #
127.0.0.1       localhost.localdomain localhost
192.168.41.191 euis1
192.168.41.192 euis2
# ifconfig | grep inet addr: | grep -v 127.0.0.1
          inet addr:192.168.41.191 Bcast:192.168.47.255 Mask:255.255.248.0
# cat /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=euis1
GATEWAY=192.168.40.1
# cat /etc/resolv.conf
nameserver 202.106.196.113
nameserver 202.106.0.20
# env | egrep LANG|LC
LC_ALL=en_US
LANG=en_US
# fdisk -l | grep Disk
Disk /dev/sda: 145.9 GB, 145999527936 bytes
# df -ha
Filesystem            Size Used Avail Use% Mounted on
/dev/sda6              20G 3.1G   16G 17% /
none                     0     0     0   - /proc
none                     0     0     0   - /sys
none                     0     0     0   - /dev/pts
usbfs                    0     0     0   - /proc/bus/usb
/dev/sda2             190M   12M 169M   7% /boot
none                  4.0G     0 4.0G   0% /dev/shm
/dev/sda3              20G 906M   18G   5% /home
/dev/sda5              20G 4.7G   15G 26% /orahome
/dev/sda8             4.0G   41M 3.7G   2% /tmp
/dev/sda10             61G   16G   43G 28% /u01
/dev/sda9             4.0G 143M 3.6G   4% /var
none                     0     0     0   - /proc/sys/fs/binfmt_misc
#

如果你使用的是SecureCRT软件登陆的服务器, 那么以上命令不用一个个敲, 像下面这样写成一个vbs脚本, 然后在 secureCRT - Script - Run 里选择运行这个vbs脚本即可. 是不是很方面?!
linux_info(root).vbs

ASP/Visual Basic代码
#$language = "VBScript"  
#$interface = "1.0"   
  
Sub Main   
       
    清空屏幕   
    crt.Screen.Send "clear" & chr(13)   
           
    服务器型号   
    crt.Screen.WaitForString "# "  
    crt.Screen.Send "dmidecode | grep Product" & chr(13)   
  
    CPU(型号,多核信息,位数)   
    crt.Screen.WaitForString "# "  
    crt.Screen.Send "cat /proc/cpuinfo | grep name | cut -f2 -d:" & chr(13)   
    crt.Screen.Send "cat /proc/cpuinfo | grep physical" & chr(13)   
    crt.Screen.Send "getconf LONG_BIT" & chr(13)   
       
    内存   
    crt.Screen.WaitForString "# "  
    crt.Screen.Send "free -m" & chr(13)   
       
    操作系统内核和版本   
    crt.Screen.WaitForString "# "  
    crt.Screen.Send "una