linux查看系统信息软件安装信息命令学习笔记

查看LINUX安装版本

[root@localhost etc]# uname
Linux
[root@localhost etc]# uname -a
Linux localhost.localdomain 2.6.32-279.11.1.el6.i686 #1 SMP Tue Oct 16 14:40:53 UTC 2012 i686 i686 i386 GNU/Linux
[root@localhost etc]# cat /proc/version
Linux version 2.6.32-279.11.1.el6.i686 ([email protected]) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Tue Oct 16 14:40:53 UTC 2012

查看apache是否安装，路径

[root@localhost httpd-2.0.64]# rpm -qa httpd
httpd-2.2.15-15.el6.centos.1.i686

[root@localhost httpd-2.0.64]# whereis httpd
httpd: /usr/sbin/httpd.event /usr/sbin/httpd /usr/sbin/httpd.worker /etc/httpd /usr/lib/httpd /usr/share/man/man8/httpd.8.gz

[root@localhost httpd-2.0.64]# find / -name httpd -print
/date/web/httpd-2.0.64/httpd
/date/web/httpd-2.0.64/.libs/httpd
/usr/sbin/httpd
/usr/local/apache2/bin/httpd
/usr/lib/httpd
^C
[root@localhost httpd-2.0.64]# ps -ef
UID        PID  PPID  C STIME TTY          TIME CMD
root         1     0  0 17:27 ?        00:00:01 /sbin/init
root         2     0  0 17:27 ?        00:00:00 [kthreadd]
root         3     2  0 17:27 ?        00:00:00 [migration/0]
root         4     2  0 17:27 ?        00:00:00 [ksoftirqd/0]
root         5     2  0 17:27 ?        00:00:00 [migration/0]
root         6     2  0 17:27 ?        00:00:00 [watchdog/0]
root         7     2  0 17:27 ?        00:00:00 [migration/1]
root         8     2  0 17:27 ?        00:00:00 [migration/1]

坦率的说，这要看你是如何安装的啦！
1.rpm包形式（包括yum安装）可以
rpm -aq|grep http                         #查看是否安装了apache的包
rpm -qi   输入上一步获取的包名         #了解一下这个apache包的信息
rpm -ql   输入包名                           #此apache包中所有文件安装的位置

2，tarball等安装
whereis  httpd                               #http文件的位置

查看CPU型号

[root@xiaoqi etc]# cat /proc/cpuinfo |grep "name" |cut -f2 -d: |uniq -c
      2  Intel(R) Pentium(R) Dual  CPU  T2370  @ 1.73GHz

查看物理CPU个数

[root@xiaoqi etc]# cat /proc/cpuinfo |grep "physical"|sort |uniq -c
      2 address sizes   : 36 bits physical, 48 bits virtual
      2 physical id : 0

查看CPU在多少位模式下面

[root@xiaoqi etc]# getconf LONG_BIT
32

下面的结果大于0说明支持64位

[root@xiaoqi etc]# cat /proc/cpuinfo |grep flags |grep 'lm' |wc -l
2

查看系统物理内存

[root@xiaoqi etc]# free -m
             total       used       free     shared    buffers     cached
Mem:          2901        901       2000          0        109        447
-/+ buffers/cache:        344       2557
Swap:         5999          0       5999

查看服务器安装的是哪个安装版本

[root@xiaoqi etc]# cat /etc/redhat-release
CentOS release 6.3 (Final)

查看OS版本是64位还是32位

[root@xiaoqi etc]# uname -a
Linux xiaoqi 2.6.32-279.14.1.el6.i686 #1 SMP Tue Nov 6 21:05:14 UTC 2012 i686 i686 i386 GNU/Linux

查看服务器硬件信息

[root@xiaoqi etc]# dmidecode |grep Vendor
    Vendor: Gateway

服务器型号

[root@xiaoqi etc]# dmidecode |grep Product
    Product Name: T-6331c
    Product Name: